You're probably right about that. mike wilson wrote: >> From: "P. J. Alling" <[EMAIL PROTECTED]> >> Date: 2007/05/15 Tue PM 07:47:42 GMT >> To: Pentax-Discuss Mail List <[email protected]> >> Subject: Re: Amazon buys dpreview.com >> >> It wouldn't be all that expensive. How many lens mounts are there in >> Digital currently? >> >> Pentax, Canon, Minolta, Nikon, 4/3, and now Leica. >> >> They could probably dispense with Leica. >> >> In fact get an Adaptal II Macro, (focal length is even relatively >> unimportant), for the sensor resolution tests. Every thing else could >> be tested with the lens that came with the test camera, but the sensor >> resolution test would be much more honest using the same lens for each >> test, removing a major variation. >> > > Don't think there is an ADII for 4/3. > > >> Tom C wrote: >> >>>> From: "Dario Bonazza" <[EMAIL PROTECTED]> >>>> >>>> >>> >>> >>>> Yes and no. Even using a given third-party lens, you (or someone else) >>>> could >>>> argue that lens vary sample to sample, so the resulting quality assessment >>>> is debatable at best. >>>> Then, provided that DPReview is using comparable lenses (which they do), I >>>> don't find useless to know what quality I can get once I enter a given >>>> camera system (which to some extent means a camera and its genuine lens, >>>> doesn't it?). >>>> >>>> >>>> >>> Yes, I don't recall reading any reviews of film camera bodies that were >>> universally tested using the same 3rd party lenses. How did we ever get by >>> before the internet? :-) >>> >>> How many users of a K10D, Sony Alpha, Canon whatever, or Nikon D80 are >>> going >>> to acquire the same 3rd party lens used by the theoretical tests we're >>> discussing? >>> >>> I agree, most users are buying into a camera system, not just the camera >>> body. Therefore doing tests with a commonly used lens within each camera >>> system provides legitimate, if not perfect results, for a large number of >>> readers. >>> >>> >>> >>> >>>> Furthermore, I think that many prospect users are not so interested in a >>>> sensor test. They are interested in camera performance. For those wanting >>>> to >>>> shoot RAW exclusively - and provided that DPReview or someone else would >>>> ony >>>> test RAW performance - you could look at the Nikon D80 or Sony Alpha 100 >>>> test for knowing what to expect from the K10D. >>>> >>>> Even worse: which converter of choice for testing RAW files? Which release? >>>> Isn't that changing on an almost daily basis? How to get comparable >>>> results? >>>> Then, isn't it possible that a given converter or a given conversion (or a >>>> given tester!) would be biased toward a camera, or sensor, or whatever? I'm >>>> truly afraid that your suggested test procedure will result being far more >>>> debatable than testing a camera JPEG performance, which at least can be >>>> rather associated to a given camera. >>>> >>>> Dario >>>> >>>> >>> All good and valid points. >>> >>> Tom C. >>> >>> >>> >>> >>> >> -- >> All dogs have four legs; my cat has four legs. Therefore, my cat is a dog. >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> > > > ----------------------------------------- > Email sent from www.virginmedia.com/email > Virus-checked using McAfee(R) Software and scanned for spam > > >
-- All dogs have four legs; my cat has four legs. Therefore, my cat is a dog. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
