Yes, I remember Tri-X at ISO 400. All I could afford as a 15 year old kid and I developed it all myself. Interesting that Boris suggest that a good rule of thumb is EV down from the max ISO. So that puts the K7 at 1600 and the Kx at 3200. I found an interesting article at http://www.imaging-resource.com/PRODS/K7/K7A.HTM . It's a K7 review but has many samples of images at high iso on different cameras, one of which was the E-P1. It appears that the E-P1 has better high ISO detailing than the K7, although a lot of this is judgement.
On Wed, Sep 1, 2010 at 11:16 AM, Paul Sorenson <allarou...@earthlink.net> wrote: > It is kind of mind boggling. When I got my first SLR in the early 1960s > High Speed Ektachrome, at ASA 160, was a big step up in speed. :-) > > On 9/1/2010 9:53 AM, Steven Desjardins wrote: >> >> I freely admit that I don't think I am really understanding the >> implications of ISO 12,800. It's like a person being 20 ft. tall. >> My mind has trouble associating that number with that property. I >> noticed that one high end Nikon had a max sensitivity of 102,400. >> That's like trying to grasp an f0.1 aperture. It makes mathematical >> sense in terms of EVs but I never thought I would see such a thing. >> >> On Wed, Sep 1, 2010 at 12:25 AM, Paul Sorenson<allarou...@earthlink.net> >> wrote: >>> >>> Here's another K-X example if you need low light capabilities. Pretty >>> much >>> a straight import into LR3 - at ISO 12,800. The noise isn't >>> objectionable >>> at normal viewing. (K-X, fa80-...@320mm,1/1...@f5.6) >>> >>> http://www.studio1941.com/photos/content/IMGP0631_large.html >>> >>> -p >>> >>> On 8/31/2010 1:34 PM, Bruce Dayton wrote: >>>> >>>> One big difference for me was that with the K20 and earlier I really had >>>> to have good conditions (lighting, processing, etc) to make a high >>>> ISO shot reasonable. For instance, when shooting weddings I could >>>> take a couple of shots with the 50/1.4 lens close to wide open and no >>>> flash, then process to remove ugly color cast and grain, etc. The >>>> resulting image would possibly even need to be turned to B&W. >>>> Basically, this meant that the shot was not the norm, but the >>>> exception. >>>> >>>> With the K-x, it is totally changed. Straight out of the camera, ISO >>>> 6400 is looking quite good - no extra work. So now I have shot >>>> entire receptions with no flash and no heavy post processing. Even >>>> more so, simple snaps of the family in situations where I would have >>>> used a flash in the past, I no longer need to. Gathered around the >>>> dinner table talking in the evening or playing a game or one of the >>>> kids receiving an award at school, etc. The ability to shoot >>>> consistently at high ISO (1600+) is a real game changer. >>>> >>>> ISO 6400, 85mm Soft Focus lens, no post processing, shot right after >>>> dinner: >>>> http://www.daytonphoto.com/PAW/imgp1200-1.htm >>>> >>>> I would never have thought to take that kind of shot in the past. >>>> >>>> >>>> That is why I am saying to try the K-x and really see how different >>>> you start shooting and thinking. When I got mine, it was only to >>>> shoot a gymnastics sporting event - that covered the cost for me. It >>>> turned out to be just the tip of the iceberg. >>>> >>>> Here is a shot from a reception - fairly dim lighting - ISO 6400 - >>>> pretty much no post processing: >>>> http://www.daytonphoto.com/PAW/hoffman_00295.htm >>>> >>>> With flash, the shot would not be the same. This is the kind of >>>> thing I am talking about. Not really thinking about how you shoot >>>> today, but really thinking outside of the box. For me, the K-x was >>>> really a game changer in thought process and fun. Prior to that, >>>> pretty much the old thought process all the way back into my film >>>> days. >>>> >>>> "If you always do what you've always done, you'll always get what >>>> you've always got." >>>> >>>> Time to change it up and see what this Brave New World is offering. >>>> >>>> >>>> >>>> >>>> No virus found in this incoming message. >>>> Checked by AVG - www.avg.com >>>> Version: 9.0.851 / Virus Database: 271.1.1/3104 - Release Date: 08/31/10 >>>> 01:34:00 >>>> >>> >>> -- >>> 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. >>> >> >> >> >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 9.0.851 / Virus Database: 271.1.1/3106 - Release Date: 09/01/10 >> 01:34:00 >> > > > -- > 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. > -- Steve Desjardins -- 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.
