Re: PESO - Sharpness Comparison Redux
I'm sure Marnie's mailbox thanks you... Joseph McAllister wrote: On Jun 10, 2009, at 01:18 , AlunFoto wrote: All said, I think the variation in mottling of the red colour on the sign surface indicates there must be some random error introduced by your image processing here. Hard to tell how this influence the apparent sharpness, but I suspect it does, at this level. You also have a slight variation in selected aperture between lenses, which you haven't explained. If based on info about maximizing MTF, I'd understand, otherwise it's just another randomizer. As I said, this was shot in MTF mode, so in Pentax's theory, all lenses were shot at their most favorable aperture. Because shot #5 was a bit brighter than the others as rendered, I did lighten by exposure in Aperture all the others. Probably would look different if I'd just darkened the one. And one of them I had to straighten, as it was tilted. Both actions taken not knowing I'd be going to such high magnification to display them. I looked at these much the same as did you, but I also included the rendering of the upper left while line of the octagon. It has a good upper left edge white to almost black, and white to red in the inside. Less bleeding on either edge I judged to be sharper. And the bird poo was too soft edged in reality to be much help in judging. But the center of it provides some contrast hints between red and white. Thank you all for looking. Bob S., Jack Davis, Walter Hamler, Ken Waller, Mike Wilson, Jostein, and John Francis for joining in lens-wise. If anyone wasn't keeping score, the tally at this point (and I expect no more) is #1 DA 18-2500 points #2 FA 28-1056 points #3 DA 50-2001 point #4 Tokina 80-2001 pointATX Pro #5 FA 28-703 points #6 DA 17-700 points "Best" votes and "Tied for First" votes were counted, including mine, which was #2. BUT, given the vagaries of the rendering, and the hand holding by an old unsteady hand, I think I learned some things. I will repeat the test with my Edmond Scientific lens chart, from a tripod, etc, and do the judging myself so as not to burden the list, nor Marnie's mailbox, any more. I will post my findings, once I have them, but today I have other things to do. Thanks again! Joseph McAllister pentax...@mac.com “If I could tell the story in words, I wouldn’t need to lug a camera.” –Lewis Hine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- The free man owns himself. He can damage himself with either eating or drinking; he can ruin himself with gambling. If he does he is certainly a damn fool, and he might possibly be a damned soul; but if he may not, he is not a free man any more than a dog. --G. K. Chesterton -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
On Jun 10, 2009, at 01:18 , AlunFoto wrote: All said, I think the variation in mottling of the red colour on the sign surface indicates there must be some random error introduced by your image processing here. Hard to tell how this influence the apparent sharpness, but I suspect it does, at this level. You also have a slight variation in selected aperture between lenses, which you haven't explained. If based on info about maximizing MTF, I'd understand, otherwise it's just another randomizer. As I said, this was shot in MTF mode, so in Pentax's theory, all lenses were shot at their most favorable aperture. Because shot #5 was a bit brighter than the others as rendered, I did lighten by exposure in Aperture all the others. Probably would look different if I'd just darkened the one. And one of them I had to straighten, as it was tilted. Both actions taken not knowing I'd be going to such high magnification to display them. I looked at these much the same as did you, but I also included the rendering of the upper left while line of the octagon. It has a good upper left edge white to almost black, and white to red in the inside. Less bleeding on either edge I judged to be sharper. And the bird poo was too soft edged in reality to be much help in judging. But the center of it provides some contrast hints between red and white. Thank you all for looking. Bob S., Jack Davis, Walter Hamler, Ken Waller, Mike Wilson, Jostein, and John Francis for joining in lens-wise. If anyone wasn't keeping score, the tally at this point (and I expect no more) is #1 DA 18-2500 points #2 FA 28-1056 points #3 DA 50-2001 point #4 Tokina 80-2001 point ATX Pro #5 FA 28-70 3 points #6 DA 17-70 0 points "Best" votes and "Tied for First" votes were counted, including mine, which was #2. BUT, given the vagaries of the rendering, and the hand holding by an old unsteady hand, I think I learned some things. I will repeat the test with my Edmond Scientific lens chart, from a tripod, etc, and do the judging myself so as not to burden the list, nor Marnie's mailbox, any more. I will post my findings, once I have them, but today I have other things to do. Thanks again! Joseph McAllister pentax...@mac.com “If I could tell the story in words, I wouldn’t need to lug a camera.” –Lewis Hine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
Same as the first time; #2. J --- On Tue, 6/9/09, Ken Waller wrote: > From: Ken Waller > Subject: Re: PESO - Sharpness Comparison Redux > To: "Pentax-Discuss Mail List" > Date: Tuesday, June 9, 2009, 9:11 PM > # 2 ooks the sharpest, by a small > margin, to me. > > Kenneth Waller > http://www.tinyurl.com/272u2f > > - Original Message - From: "Joseph McAllister" > > Subject: Re: PESO - Sharpness Comparison Redux > > > > A bit impractical as far as PDML goes. But thank > you for taking a look. > > > > I had to look at them quite a few times, making sure > my eyes were free of excess liquid, and my glasses > perfectly clean, before I was able to pick out the two > best, and the best, given the conditions. Don't think > it would be any better on a tripod, given Anti-shake and > shutter speeds from 1/500 to 1/1000. > > > > I concentrated on the top bolt of the sign. Compared > that to the sharpness of the flowers against the evergreen > to see if back focus was bad. Checked the two leaves > that were closest to the sign on the upper right hand > side of the octagon. I tried making it larger, but > they started to fall apart rather than getting closer. They > were only 1/6 of the size of the sensor widthwise, > less in the vertical dimension. > > > > I've re-cropped, to simplify. Take another look and > give me your best guesses again please. > > > > http://homepage.mac.com/jomac/PESO/0007/ > > > > > > On Jun 9, 2009, at 15:26 , Ken Waller wrote: > > > >> I think you'd probably have to print these to > answer your question. As viewed on the web they all > look the same to me - too close to call. > >> > >> Kenneth Waller > >> http://www.tinyurl.com/272u2f > >> > >> - Original Message - From: "mike wilson" > >> > > >> Subject: Re: PESO - Sharpness comparison > >> > >> > >>> > >>> Joseph McAllister > wrote: > >>>> I shot my local stop sign from my deck > this afternoon. Six different > >>>> lenses. Auto-focused second push on the > release on the stop sign, > >>>> center spot, center weighted exposure, > similar focal lengths, anti- > >>>> shake on, MTF mode. > >>>> > >>>> http://homepage.mac.com/jomac/PESO/0007/ > >>>> > >>>> If you go through images 1 thru 6, then go > back and start over, they > >>>> will be in your cache, and load much > faster. Makes it easier to compare. > >>>> > >>>> I'd like to hear from a few of you as to > which stop sign you think is > >>>> sharpest. I know what I think, but... > >>> > >>> Based on the images presented, I cannot make > any practical choice. They all look about the same. > > > > Joseph McAllister > > Pentaxian > > > > http://gallery.me.com/jomac > > http://web.me.com/jomac/show.me/Blog/Blog.html > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link > directly above and follow the directions. > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
Joseph McAllister wrote: > A bit impractical as far as PDML goes. But thank you for taking a look. > > I had to look at them quite a few times, making sure my eyes were free > of excess liquid, and my glasses perfectly clean, before I was able to > pick out the two best, and the best, given the conditions. Don't think > it would be any better on a tripod, given Anti-shake and shutter > speeds from 1/500 to 1/1000. > > I concentrated on the top bolt of the sign. Compared that to the > sharpness of the flowers against the evergreen to see if back focus > was bad. Checked the two leaves that were closest to the sign on the > upper right hand side of the octagon. I tried making it larger, but > they started to fall apart rather than getting closer. They were only > 1/6 of the size of the sensor widthwise, less in the vertical dimension. > > I've re-cropped, to simplify. Take another look and give me your best > guesses again please. > > http://homepage.mac.com/jomac/PESO/0007/ Even with your guidance, I'm not seeing anything that I would call significant. Just possibly, the FA28 - 70 edges the others but I would be unwilling to stake my life on it. I would be happier to say that the 17 - 70 is the worst. > > > On Jun 9, 2009, at 15:26 , Ken Waller wrote: > > > I think you'd probably have to print these to answer your question. > > As viewed on the web they all look the same to me - too close to call. > > > > Kenneth Waller > > http://www.tinyurl.com/272u2f > > > > - Original Message - From: "mike wilson" > > > > Subject: Re: PESO - Sharpness comparison > > > > > >> > >> Joseph McAllister wrote: > >>> I shot my local stop sign from my deck this afternoon. Six different > >>> lenses. Auto-focused second push on the release on the stop sign, > >>> center spot, center weighted exposure, similar focal lengths, anti- > >>> shake on, MTF mode. > >>> > >>> http://homepage.mac.com/jomac/PESO/0007/ > >>> > >>> If you go through images 1 thru 6, then go back and start over, they > >>> will be in your cache, and load much faster. Makes it easier to > >>> compare. > >>> > >>> I'd like to hear from a few of you as to which stop sign you think > >>> is > >>> sharpest. I know what I think, but... > >> > >> Based on the images presented, I cannot make any practical choice. > >> They all look about the same. > > Joseph McAllister > Pentaxian > > http://gallery.me.com/jomac > http://web.me.com/jomac/show.me/Blog/Blog.html > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
Finally got time to study them. Have looked at them on two different screens, even. # 4 has pronounced purple colour artifacts, so I rank this at the bottom. # 1 has a bit lower contrast than the others, as seen in the mark above the "S" and around the screws. # 6 and # 5 tie in sharpness, while different from each other in rendering. Look at the stripe made by running water down from the screw at top, for example. # 3 and # 2 appear "best" in terms of sharpness, with # 2 slightly ahead in apparent contrast, again based on the appearance of the mark above the "S". All said, I think the variation in mottling of the red colour on the sign surface indicates there must be some random error introduced by your image processing here. Hard to tell how this influence the apparent sharpness, but I suspect it does, at this level. You also have a slight variation in selected aperture between lenses, which you haven't explained. If based on info about maximising MTF, I'd understand, otherwise it's just another randomiser. I also think the differences are so small that this is well within the realms of nitpicking. Or measurbation. I don't think there's anything the list can provide for you here that you can't arrive at yourself. Jostein 2009/6/10 Joseph McAllister : > A bit impractical as far as PDML goes. But thank you for taking a look. > > I had to look at them quite a few times, making sure my eyes were free of > excess liquid, and my glasses perfectly clean, before I was able to pick out > the two best, and the best, given the conditions. Don't think it would be > any better on a tripod, given Anti-shake and shutter speeds from 1/500 to > 1/1000. > > I concentrated on the top bolt of the sign. Compared that to the sharpness > of the flowers against the evergreen to see if back focus was bad. Checked > the two leaves that were closest to the sign on the upper right hand side of > the octagon. I tried making it larger, but they started to fall apart rather > than getting closer. They were only 1/6 of the size of the sensor widthwise, > less in the vertical dimension. > > I've re-cropped, to simplify. Take another look and give me your best > guesses again please. > > http://homepage.mac.com/jomac/PESO/0007/ > > > On Jun 9, 2009, at 15:26 , Ken Waller wrote: > >> I think you'd probably have to print these to answer your question. As >> viewed on the web they all look the same to me - too close to call. >> >> Kenneth Waller >> http://www.tinyurl.com/272u2f >> >> - Original Message - From: "mike wilson" >> Subject: Re: PESO - Sharpness comparison >> >> >>> >>> Joseph McAllister wrote: >>>> >>>> I shot my local stop sign from my deck this afternoon. Six different >>>> lenses. Auto-focused second push on the release on the stop sign, >>>> center spot, center weighted exposure, similar focal lengths, anti- >>>> shake on, MTF mode. >>>> >>>> http://homepage.mac.com/jomac/PESO/0007/ >>>> >>>> If you go through images 1 thru 6, then go back and start over, they >>>> will be in your cache, and load much faster. Makes it easier to compare. >>>> >>>> I'd like to hear from a few of you as to which stop sign you think is >>>> sharpest. I know what I think, but... >>> >>> Based on the images presented, I cannot make any practical choice. They >>> all look about the same. > > Joseph McAllister > Pentaxian > > http://gallery.me.com/jomac > http://web.me.com/jomac/show.me/Blog/Blog.html > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
On Tue, Jun 09, 2009 at 10:16:03PM -0700, Joseph McAllister wrote: > On Jun 9, 2009, at 20:08 , Bob Sullivan wrote: > >> They are really a lens nobody is paying attention to - old power zoom >> FA 28-105/4-5.6. >> I think optical qualities are 2nd only to the FA*28-70/2.8 >> Regards, Bob S. > > SShhh! I believe Godfrey ran some comparisons, and found a later 28-105 (f3.5 at the short end) to be a somewhat better lens overall. I bought the PZ 28-105 in '95 when I bought my PZ-1p, and it's still in my regular lens kit (although the 50-135 is making inroads). One thing I really like about the 28-105 is the close focussing. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
#2 is bland. Several of the others have some interesting purple fringing. All are what they say to you, in your heart. STOP! In the name of love… :-() Be one with the red. On Jun 9, 2009, at 21:20 , David Savage wrote: More important question: Which is the most interesting? DS -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Ken Waller Sent: Wednesday, 10 June 2009 12:11 PM To: Pentax-Discuss Mail List Subject: Re: PESO - Sharpness Comparison Redux # 2 ooks the sharpest, by a small margin, to me. Kenneth Waller http://www.tinyurl.com/272u2f Joseph McAllister pentax...@mac.com http://gallery.me.com/jomac http://web.me.com/jomac/show.me/Blog/Blog.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
On Jun 9, 2009, at 20:08 , Bob Sullivan wrote: They are really a lens nobody is paying attention to - old power zoom FA 28-105/4-5.6. I think optical qualities are 2nd only to the FA*28-70/2.8 Regards, Bob S. SShhh! Joseph McAllister pentax...@mac.com There is no off position to the genius switch. Genius can, however, be observed as insanity. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
No, but Sullivan seems intent on getting rid of one... On Jun 9, 2009, at 18:55 , Keith Whaley wrote: Bob Sullivan wrote: Joe, [...] I really like the old FA 28-105. Wanna sell it? (I just got an MZ-3!) Joseph McAllister Pentaxian http://gallery.me.com/jomac http://web.me.com/jomac/show.me/Blog/Blog.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO - Sharpness Comparison Redux
More important question: Which is the most interesting? DS > -Original Message- > From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of > Ken Waller > Sent: Wednesday, 10 June 2009 12:11 PM > To: Pentax-Discuss Mail List > Subject: Re: PESO - Sharpness Comparison Redux > > # 2 ooks the sharpest, by a small margin, to me. > > Kenneth Waller > http://www.tinyurl.com/272u2f > > - Original Message - > From: "Joseph McAllister" > Subject: Re: PESO - Sharpness Comparison Redux > > > >A bit impractical as far as PDML goes. But thank you for taking a look. > > > > I had to look at them quite a few times, making sure my eyes were free of > > excess liquid, and my glasses perfectly clean, before I was able to pick > > out the two best, and the best, given the conditions. Don't think it > > would be any better on a tripod, given Anti-shake and shutter speeds from > > 1/500 to 1/1000. > > > > I concentrated on the top bolt of the sign. Compared that to the > > sharpness of the flowers against the evergreen to see if back focus was > > bad. Checked the two leaves that were closest to the sign on the upper > > right hand side of the octagon. I tried making it larger, but they > > started to fall apart rather than getting closer. They were only 1/6 of > > the size of the sensor widthwise, less in the vertical dimension. > > > > I've re-cropped, to simplify. Take another look and give me your best > > guesses again please. > > > > http://homepage.mac.com/jomac/PESO/0007/ > > > > > > On Jun 9, 2009, at 15:26 , Ken Waller wrote: > > > >> I think you'd probably have to print these to answer your question. As > >> viewed on the web they all look the same to me - too close to call. > >> > >> Kenneth Waller > >> http://www.tinyurl.com/272u2f > >> > >> - Original Message - From: "mike wilson" >> > > >> Subject: Re: PESO - Sharpness comparison > >> > >> > >>> > >>> Joseph McAllister wrote: > >>>> I shot my local stop sign from my deck this afternoon. Six different > >>>> lenses. Auto-focused second push on the release on the stop sign, > >>>> center spot, center weighted exposure, similar focal lengths, anti- > >>>> shake on, MTF mode. > >>>> > >>>> http://homepage.mac.com/jomac/PESO/0007/ > >>>> > >>>> If you go through images 1 thru 6, then go back and start over, they > >>>> will be in your cache, and load much faster. Makes it easier to > >>>> compare. > >>>> > >>>> I'd like to hear from a few of you as to which stop sign you think is > >>>> sharpest. I know what I think, but... > >>> > >>> Based on the images presented, I cannot make any practical choice. > >>> They all look about the same. > > > > Joseph McAllister > > Pentaxian -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
# 2 ooks the sharpest, by a small margin, to me. Kenneth Waller http://www.tinyurl.com/272u2f - Original Message - From: "Joseph McAllister" Subject: Re: PESO - Sharpness Comparison Redux A bit impractical as far as PDML goes. But thank you for taking a look. I had to look at them quite a few times, making sure my eyes were free of excess liquid, and my glasses perfectly clean, before I was able to pick out the two best, and the best, given the conditions. Don't think it would be any better on a tripod, given Anti-shake and shutter speeds from 1/500 to 1/1000. I concentrated on the top bolt of the sign. Compared that to the sharpness of the flowers against the evergreen to see if back focus was bad. Checked the two leaves that were closest to the sign on the upper right hand side of the octagon. I tried making it larger, but they started to fall apart rather than getting closer. They were only 1/6 of the size of the sensor widthwise, less in the vertical dimension. I've re-cropped, to simplify. Take another look and give me your best guesses again please. http://homepage.mac.com/jomac/PESO/0007/ On Jun 9, 2009, at 15:26 , Ken Waller wrote: I think you'd probably have to print these to answer your question. As viewed on the web they all look the same to me - too close to call. Kenneth Waller http://www.tinyurl.com/272u2f - Original Message - From: "mike wilson" Subject: Re: PESO - Sharpness comparison Joseph McAllister wrote: I shot my local stop sign from my deck this afternoon. Six different lenses. Auto-focused second push on the release on the stop sign, center spot, center weighted exposure, similar focal lengths, anti- shake on, MTF mode. http://homepage.mac.com/jomac/PESO/0007/ If you go through images 1 thru 6, then go back and start over, they will be in your cache, and load much faster. Makes it easier to compare. I'd like to hear from a few of you as to which stop sign you think is sharpest. I know what I think, but... Based on the images presented, I cannot make any practical choice. They all look about the same. Joseph McAllister Pentaxian http://gallery.me.com/jomac http://web.me.com/jomac/show.me/Blog/Blog.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Keith, Let me know if you're serious. I might have picked up a second one shortly after the first. They are really a lens nobody is paying attention to - old power zoom FA 28-105/4-5.6. I think optical qualities are 2nd only to the FA*28-70/2.8 Regards, Bob S. On Tue, Jun 9, 2009 at 8:55 PM, Keith Whaley wrote: > Bob Sullivan wrote: >> >> Joe, > > [...] > >> I really like the old FA 28-105. > > Wanna sell it? (I just got an MZ-3!) > > keith > >> When I finally got one a couple of years ago, >> I wished I would have had it with my original PZ-1. The FA28-90 was a >> dog. >> It almost killed my photography. >> Regards, Bob S. > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Bob Sullivan wrote: Joe, [...] I really like the old FA 28-105. Wanna sell it? (I just got an MZ-3!) keith When I finally got one a couple of years ago, I wished I would have had it with my original PZ-1. The FA28-90 was a dog. It almost killed my photography. Regards, Bob S. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness Comparison Redux
A bit impractical as far as PDML goes. But thank you for taking a look. I had to look at them quite a few times, making sure my eyes were free of excess liquid, and my glasses perfectly clean, before I was able to pick out the two best, and the best, given the conditions. Don't think it would be any better on a tripod, given Anti-shake and shutter speeds from 1/500 to 1/1000. I concentrated on the top bolt of the sign. Compared that to the sharpness of the flowers against the evergreen to see if back focus was bad. Checked the two leaves that were closest to the sign on the upper right hand side of the octagon. I tried making it larger, but they started to fall apart rather than getting closer. They were only 1/6 of the size of the sensor widthwise, less in the vertical dimension. I've re-cropped, to simplify. Take another look and give me your best guesses again please. http://homepage.mac.com/jomac/PESO/0007/ On Jun 9, 2009, at 15:26 , Ken Waller wrote: I think you'd probably have to print these to answer your question. As viewed on the web they all look the same to me - too close to call. Kenneth Waller http://www.tinyurl.com/272u2f - Original Message - From: "mike wilson" > Subject: Re: PESO - Sharpness comparison Joseph McAllister wrote: I shot my local stop sign from my deck this afternoon. Six different lenses. Auto-focused second push on the release on the stop sign, center spot, center weighted exposure, similar focal lengths, anti- shake on, MTF mode. http://homepage.mac.com/jomac/PESO/0007/ If you go through images 1 thru 6, then go back and start over, they will be in your cache, and load much faster. Makes it easier to compare. I'd like to hear from a few of you as to which stop sign you think is sharpest. I know what I think, but... Based on the images presented, I cannot make any practical choice. They all look about the same. Joseph McAllister Pentaxian http://gallery.me.com/jomac http://web.me.com/jomac/show.me/Blog/Blog.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
I think you'd probably have to print these to answer your question. As viewed on the web they all look the same to me - too close to call. Kenneth Waller http://www.tinyurl.com/272u2f - Original Message - From: "mike wilson" Subject: Re: PESO - Sharpness comparison Joseph McAllister wrote: I shot my local stop sign from my deck this afternoon. Six different lenses. Auto-focused second push on the release on the stop sign, center spot, center weighted exposure, similar focal lengths, anti- shake on, MTF mode. http://homepage.mac.com/jomac/PESO/0007/ If you go through images 1 thru 6, then go back and start over, they will be in your cache, and load much faster. Makes it easier to compare. I'd like to hear from a few of you as to which stop sign you think is sharpest. I know what I think, but... Based on the images presented, I cannot make any practical choice. They all look about the same. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Joe, I think #2 is my choice, but #4 isn't bad either. I really like the old FA 28-105. When I finally got one a couple of years ago, I wished I would have had it with my original PZ-1. The FA28-90 was a dog. It almost killed my photography. Regards, Bob S. On Tue, Jun 9, 2009 at 1:32 AM, Joseph McAllister wrote: > I shot my local stop sign from my deck this afternoon. Six different lenses. > Auto-focused second push on the release on the stop sign, center spot, > center weighted exposure, similar focal lengths, anti-shake on, MTF mode. > > http://homepage.mac.com/jomac/PESO/0007/ > > If you go through images 1 thru 6, then go back and start over, they will be > in your cache, and load much faster. Makes it easier to compare. > > I'd like to hear from a few of you as to which stop sign you think is > sharpest. I know what I think, but... > > Joseph McAllister > pentax...@mac.com > > I couldn't remember most of what I know today > if it weren't for others sharing their knowledge > of my past on the Internet. Thank you… > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Went through them several times and "think" #2 is the sharpest. Jack --- On Mon, 6/8/09, Joseph McAllister wrote: > From: Joseph McAllister > Subject: PESO - Sharpness comparison > To: "Pentax-Discuss Mail List" > Date: Monday, June 8, 2009, 11:32 PM > I shot my local stop sign from my > deck this afternoon. Six different lenses. Auto-focused > second push on the release on the stop sign, center spot, > center weighted exposure, similar focal lengths, anti-shake > on, MTF mode. > > http://homepage.mac.com/jomac/PESO/0007/ > > If you go through images 1 thru 6, then go back and start > over, they will be in your cache, and load much faster. > Makes it easier to compare. > > I'd like to hear from a few of you as to which stop sign > you think is sharpest. I know what I think, but... > > Joseph McAllister > pentax...@mac.com > > I couldn't remember most of what I know today > if it weren't for others sharing their knowledge > of my past on the Internet. Thank you… > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link > directly above and follow the directions. > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Joe, 1 and 6 are the worst. 2 -5 are about equal as best I can determine. Walt -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Joseph McAllister wrote: > I shot my local stop sign from my deck this afternoon. Six different > lenses. Auto-focused second push on the release on the stop sign, > center spot, center weighted exposure, similar focal lengths, anti- > shake on, MTF mode. > > http://homepage.mac.com/jomac/PESO/0007/ > > If you go through images 1 thru 6, then go back and start over, they > will be in your cache, and load much faster. Makes it easier to compare. > > I'd like to hear from a few of you as to which stop sign you think is > sharpest. I know what I think, but... Based on the images presented, I cannot make any practical choice. They all look about the same. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
Not on any of these lenses. I tried a few like the DA* 200, and following the instructions in the book exactly, it got worse. I will attend to that another time. Most of my DA lenses tend towards back focus, which I overcome by trying to always shoot my dog activities on sunny afternoons, between ƒ5.6 and ƒ8, depending on the lens. More sharp pictures that way. On Jun 9, 2009, at 00:18 , AlunFoto wrote: One question... Did you calibrate the focal plane on your K20 for each lens before testing? If it doesn’t excite you, This thing that you see, Why in the world, Would it excite me? —Jay Maisel Joseph McAllister pentax...@mac.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Sharpness comparison
One question... Did you calibrate the focal plane on your K20 for each lens before testing? Jostein 2009/6/9 Joseph McAllister : > I shot my local stop sign from my deck this afternoon. Six different lenses. > Auto-focused second push on the release on the stop sign, center spot, > center weighted exposure, similar focal lengths, anti-shake on, MTF mode. > > http://homepage.mac.com/jomac/PESO/0007/ > > If you go through images 1 thru 6, then go back and start over, they will be > in your cache, and load much faster. Makes it easier to compare. > > I'd like to hear from a few of you as to which stop sign you think is > sharpest. I know what I think, but... > > Joseph McAllister > pentax...@mac.com > > I couldn't remember most of what I know today > if it weren't for others sharing their knowledge > of my past on the Internet. Thank you… > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
PESO - Sharpness comparison
I shot my local stop sign from my deck this afternoon. Six different lenses. Auto-focused second push on the release on the stop sign, center spot, center weighted exposure, similar focal lengths, anti- shake on, MTF mode. http://homepage.mac.com/jomac/PESO/0007/ If you go through images 1 thru 6, then go back and start over, they will be in your cache, and load much faster. Makes it easier to compare. I'd like to hear from a few of you as to which stop sign you think is sharpest. I know what I think, but... Joseph McAllister pentax...@mac.com I couldn't remember most of what I know today if it weren't for others sharing their knowledge of my past on the Internet. Thank you… -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
