Re: Subject: RE: Subject: Re: Swan Song Photo!
The reason why it works is because with the K-mount, the lens is normally stopped down. You can confirm this by looking through any lens while it is off the camera. The camera has a lever that holds the lens open when it is mounted on the camera. What you do by twisting the lens is disengaging this lever so the lens stops down, so the light meter will then be reading the light coming through at the aperture that the photo will be taken at. This is also a way to get DOF preview on any K-mount body that does not have DOF preview bulit in, like the K1000 or the MZ-5o. This is risky business however, since you need one hand to hold the lens, another to hold the body, and another to turn on the light meter, so don't drop anything! BTW I'm not in the UK, but the in US. It's only 9:32 here, not that late... Hope this helps! Todd At 12:15 PM 3/26/01 +1000, you wrote: >Todd, I am not sure that I am game to try your suggestion...I'll have to >think some more on that one, I don't understand enough technically to know >why that would work, however, I'll take your word for it. Thanks also for >taking the time to try to help this damsel in distress. > >Peter, I see that you understand my confusion here, especially being a past >owner of the exact same lens. > >Even if we don't solve the mystery of making it work on the MZ-50, I guess >we have at least learnt the possible menaing of the "A" in PKA, thanks to >Todd! > >Now please go to bed and sleeep, I'd hate to be the cause of your brain >exploding due to exhaustion! hehe. > >Thanks for your help, I dare say that I will look for your further responses >tonight (Monday) which will then be your Monday morning and you should be >refreshed and ready for me to pick that brain of yours once again! ;-D > >PS Where in the UK are you located? > >Tanya. > > > - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Tamron PKA mount. was:Re: Subject: Re: Swan Song Photo!
Tamron PKA adaptall mounts don't have the A setting per se. The minimum aperture defaults as the A setting, and is usually (always?) a different colour from the other aperture numbers. William Robb - Original Message - From: "Tanya & Russell Mayer" Subject: Subject: Re: Swan Song Photo! The lens is a Tamron 135/2.5 > with the adaptall mount that says PKA on it. There is no "a" setting on the > aperture ring. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Subject: RE: Subject: Re: Swan Song Photo!
Todd, I am not sure that I am game to try your suggestion...I'll have to think some more on that one, I don't understand enough technically to know why that would work, however, I'll take your word for it. Thanks also for taking the time to try to help this damsel in distress. Peter, I see that you understand my confusion here, especially being a past owner of the exact same lens. Even if we don't solve the mystery of making it work on the MZ-50, I guess we have at least learnt the possible menaing of the "A" in PKA, thanks to Todd! Now please go to bed and sleeep, I'd hate to be the cause of your brain exploding due to exhaustion! hehe. Thanks for your help, I dare say that I will look for your further responses tonight (Monday) which will then be your Monday morning and you should be refreshed and ready for me to pick that brain of yours once again! ;-D PS Where in the UK are you located? Tanya. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
RE: Subject: Re: Swan Song Photo!
Todd & Tanya, Yes I am confused too. As I said in an earlier post I used to own a Tamron 135 2.5 close focus (Stolen 3 yrs ago). But IIRC mine had an A setting on the aperture ring. And I thought thats what the A in PKA mount stood for. Not so in this case it seems. OK so the original (Whoosh) should still apply. Trouble is it's 2am here now (UK) and my brain is definitely starting to hurt. I may try to apply Erwins rules to your specifics - 400 asa film & f2.5 max aperture if I ever get my clever head back but it wont work at present. Going to bed now. Peter > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Tanya & Russell Mayer > Sent: 25 March 2001 23:52 > To: Pentax Discussion List > Subject: Subject: Re: Swan Song Photo! > > > Peter, > > forgive me, here I am totally confused and this is probably only due to my > own lack of knowledge and experience here. The lens is a Tamron 135/2.5 > with the adaptall mount that says PKA on it. There is no "a" > setting on the > aperture ring. (I take it that this is what the "A" in PKA stands for? > Shows how much I know). So if it is not a true PKA and it is not quite a > PK, I guess I am stuck between a rock and a hardplace here. Can anybody > else offer some suggestions? Well, at least I do know that I can > use it in > TV mode and compensate when I am not using it wide open. This > was more than > I could do a couple of days ago! Thanks everyone for the time > you've spent > with me on this > > Tanya. > > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . > > - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: Subject: Re: Swan Song Photo!
I think the PKA in this means Auto diaphram, or that the lens is wide open for focusing and composing (and metering on most cameras), and stops down automatically for the exposure. The earlier Tamron lenses were simple stop down lenses. Something to check for is if the A contacts are present on the mount of the lens. I just thought of another way to possibly take a meter reading, which involves using the lens release button, and twist the lens so it stops down. Then the shutter speed it the meter displays should be accurate. But this is tricky and risky in the sense you could easily drop the lens, body, or both while trying this stunt. Todd At 08:52 AM 3/26/01 +1000, you wrote: >Peter, > >forgive me, here I am totally confused and this is probably only due to my >own lack of knowledge and experience here. The lens is a Tamron 135/2.5 >with the adaptall mount that says PKA on it. There is no "a" setting on the >aperture ring. (I take it that this is what the "A" in PKA stands for? >Shows how much I know). So if it is not a true PKA and it is not quite a >PK, I guess I am stuck between a rock and a hardplace here. Can anybody >else offer some suggestions? Well, at least I do know that I can use it in >TV mode and compensate when I am not using it wide open. This was more than >I could do a couple of days ago! Thanks everyone for the time you've spent >with me on this > >Tanya. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Subject: Re: Swan Song Photo!
Peter, forgive me, here I am totally confused and this is probably only due to my own lack of knowledge and experience here. The lens is a Tamron 135/2.5 with the adaptall mount that says PKA on it. There is no "a" setting on the aperture ring. (I take it that this is what the "A" in PKA stands for? Shows how much I know). So if it is not a true PKA and it is not quite a PK, I guess I am stuck between a rock and a hardplace here. Can anybody else offer some suggestions? Well, at least I do know that I can use it in TV mode and compensate when I am not using it wide open. This was more than I could do a couple of days ago! Thanks everyone for the time you've spent with me on this Tanya. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Subject: RE: Subject: Re: Swan Song Photo!
Peter wrote: "This is a copy of a post from a few weeks ago - I re-send it because it is relevant to what Todd was saying to Tania about using K mount lenses on an MZ50. Note this is by Erwin Vereecken not myself. I think it's quite clever though. Just thinking of something, > > If you put your M50 f1.7 on your MZ-50, for more then just one occasional > shot, you could do the following: > > Manually select an ISO speed of 2 and 2/3 stops lower then reality (ISO16 > for and ISO100film, ISO 32 for a 200film, etc..) > > With the camera on manual, the light meter will now show you > which diaphragm > to select. The middle of the meter range will be f4.0, one higher > f5.6, one > lower f2.8 etc, all the way from f1.4(which you don't have) to f11, > including the half stops. > > Should work fairly quick, withouth calculations. > > There is a theoretical 1/6 stop overexposure, but that should'nt have a > visible influence on the result. If you think your camera has a > tendency to > overexpose anyway, lower ISO speed by 2 and 1/3 stop, that will give a > theoretical underexposure of 1/6 stop. > > It's not real easy, because if you would have several manual lenses, you > would have to change ISO everytime you change lens, f.i. for a f2.8, lens > ISO would have to be lowered 1 stop to keep f4 in the midle, and if you > mount an automatic lens in between, you shouldn't forget to put > ISO back to > nominal." Peter thanks for your attempt to help me here, but I have only one thing to say "wwooosh!" That all just went straight over my head! Well, not really, but I am sitting here trying what Erwin suggests and I can't for rhe life of me get my meter to do anything but flash at me in any other mode except tv - no matter what ISO I set it at. I have a T400CN loaded at the moment and I am clueless here! I did notice however that you mentioned that this is for "K" mount lenses; the lens I am using is a Tamron with PKA adaptall, would this make any difference? Thanks in advance. Tanya. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
RE: Subject: Re: Swan Song Photo!
This is a copy of a post from a few weeks ago - I re-send it because it is relevent to what Todd was saying to Tania about using K mount lenses on an MZ50. Note this is by Erwin Vereecken not myself. I think it's quite clever though. Peter > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Erwin Vereecken > Sent: 16 February 2001 13:31 > To: [EMAIL PROTECTED] > Subject: Re: time @ f-stop formula > > > Just thinking of something, > > If you put your M50 f1.7 on your MZ-50, for more then just one occasional > shot, you could do the following: > > Manually select an ISO speed of 2 and 2/3 stops lower then reality (ISO16 > for and ISO100film, ISO 32 for a 200film, etc..) > > With the camera on manual, the light meter will now show you > which diaphragm > to select. The middle of the meter range will be f4.0, one higher > f5.6, one > lower f2.8 etc, all the way from f1.4(which you don't have) to f11, > including the half stops. > > Should work fairly quick, withouth calculations. > > There is a theoretical 1/6 stop overexposure, but that should'nt have a > visible influence on the result. If you think your camera has a > tendency to > overexpose anyway, lower ISO speed by 2 and 1/3 stop, that will give a > theoretical underexposure of 1/6 stop. > > It's not real easy, because if you would have several manual lenses, you > would have to change ISO everytime you change lens, f.i. for a f2.8, lens > ISO would have to be lowered 1 stop to keep f4 in the midle, and if you > mount an automatic lens in between, you shouldn't forget to put > ISO back to > nominal. > > > Just an idea, > > Erwin > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Todd Stanley > Sent: 24 March 2001 18:29 > To: [EMAIL PROTECTED] > Subject: Re: Subject: Re: Swan Song Photo! > > > > Yep, you have the idea there. I remember someone had a way of setting the > ISO to a certain setting (depends on film and lens) and the little dots on > the light meter scale would indicate the aperture, but I forgot > the details > as I don't have a MZ-50. Anyway, good luck with combo! > > Todd > > At 07:31 PM 3/24/01 +1000, you wrote: > > > >"Todd, thankyou so much for this! I had no idea that I could > use it in TV > >mode providing that it is wide open. I almost always shoot in manual and > >hadn't even considered trying the other modes. I am so happy that I can > >now use this lens! I was quite disappointed to find that the > meter wouldn't > >work with the lens and not having a handheld meter, I had rendered it > >virtually useless on this camera! So basically, what you are > saying is that > >if I want to use it say on f5.6, then I just slow down the shutter speed > >that > >the camera advises by 21/2 stops? Makes sense now! I am renewed, I > >can use my lens, and in actual fact, it may prove beneficial to my > >learning to have to work this way for some time, as I will really have to > >think about the relationship between the f-stops and the shutter > speed. So, > >there we go, there is a silver lining after all!" > > > > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . > > - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: Subject: Re: Swan Song Photo!
Yep, you have the idea there. I remember someone had a way of setting the ISO to a certain setting (depends on film and lens) and the little dots on the light meter scale would indicate the aperture, but I forgot the details as I don't have a MZ-50. Anyway, good luck with combo! Todd At 07:31 PM 3/24/01 +1000, you wrote: > >"Todd, thankyou so much for this! I had no idea that I could use it in TV >mode providing that it is wide open. I almost always shoot in manual and >hadn't even considered trying the other modes. I am so happy that I can >now use this lens! I was quite disappointed to find that the meter wouldn't >work with the lens and not having a handheld meter, I had rendered it >virtually useless on this camera! So basically, what you are saying is that >if I want to use it say on f5.6, then I just slow down the shutter speed >that >the camera advises by 21/2 stops? Makes sense now! I am renewed, I >can use my lens, and in actual fact, it may prove beneficial to my >learning to have to work this way for some time, as I will really have to >think about the relationship between the f-stops and the shutter speed. So, >there we go, there is a silver lining after all!" > - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: Subject: Re: Swan Song Photo!
Tanya & Russell Mayer wrote: >> Tom said: >> "Just how close does it focus? " > > Tom, it focuses at 1.4 metres or 4 ft. I personally think that that is too > far > especially for a lens that is labelled as "close focus", but there you have > it. > At what distance would a 135mm without "close focus" normally focus? The FA 135 focuses down to 2.feet (.7m). I think that's about 1:4. I don't think that's 'normal', but it's sure nice... > >> "That's pretty nice bokeh" > > Thanks, and that is the exact reason that I took that shot, I just wanted to > test > it out a bit. Now, to go slightly off topic (but I don't really care cause > it is my > topic anyways!), you know that until I read the PDML Glossary, I had never > heard of the word "bokeh", but had a feeling that some lenses looked better > out of focus than others. Do you know what? And did you know it was introduced into english (from the Japanese) by a PDML member? tv - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Subject: Re: Swan Song Photo!
Todd wrote: You can use the lens with the MZ-50, but the light meter is almost useless, it will meter for the F2.5 aperture no matter where you set the aperture ring. So either use it wide open, compensate the reading for how many stops you have the lens set down from F2.5, or ignore the light meter and get exposure settings from elsewhere. "Todd, thankyou so much for this! I had no idea that I could use it in TV mode providing that it is wide open. I almost always shoot in manual and hadn't even considered trying the other modes. I am so happy that I can now use this lens! I was quite disappointed to find that the meter wouldn't work with the lens and not having a handheld meter, I had rendered it virtually useless on this camera! So basically, what you are saying is that if I want to use it say on f5.6, then I just slow down the shutter speed that the camera advises by 21/2 stops? Makes sense now! I am renewed, I can use my lens, and in actual fact, it may prove beneficial to my learning to have to work this way for some time, as I will really have to think about the relationship between the f-stops and the shutter speed. So, there we go, there is a silver lining after all!" Tom (the big day photo one) wrote: "You should have that hand looked at. That's not right." Yes, you should have seen my husband's face as he tried to count all of his fingers and toes when he was born! "Just how close does it focus? " Tom, it focuses at 1.4 metres or 4 ft. I personally think that that is too far especially for a lens that is labelled as "close focus", but there you have it. At what distance would a 135mm without "close focus" normally focus? "That's pretty nice bokeh" Thanks, and that is the exact reason that I took that shot, I just wanted to test it out a bit. Now, to go slightly off topic (but I don't really care cause it is my topic anyways!), you know that until I read the PDML Glossary, I had never heard of the word "bokeh", but had a feeling that some lenses looked better out of focus than others. Do you know what? In the past week, since I have learned that the word exists, I have seen & heard it used in direct conversation with me at least 5 or 6 times! Isn't strange how these things work? "So what are you going to do? I'd trade in that mz-50 and get a couple of super programs, but that's just me..." Well, I'm keeping the mz-50 for now, however, I have just had a more than generous offer from another PDML'er and it seems that I have been EXTREMELY fortunate to acquire an ME Super, basically for nothing! So, I guess that the plan is to work with these two bodies, at least until the camera fairy sends a reeeally cheap Ebay PZ-1p my way, or until the MZ-S is released and the prices of the PZ-1p go down the gurgler. I may consider, depending on how financial I can get, on going with an Mz-5n if I can't get a hold of the Pz body before too long (I'm talking Xmas here - we're building a house this year remember!) Of course, if anybody knows how to contact Easter Bunny directly, please put in a good word for me! However, after tonight's lotto draw, all of this will be a distant memory for me and I'll be purchasing shares in Pentax with a lifelong subscription to whatever equipment takes my fancy...heehee. ;-) Tanya. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
