I don't think such a site exists.
Others will no doubt correct me if I am wrong, but there does not seem to
be any overwhelming evidence to suggest that older lenses in general work
badly with digital.
Because of the crop factor, the following is true (of APS-C DSLRs):
1 Lenses with poor edge performance do better on digital because the
edges are cropped.
2 Because the captured image is smaller, more magnification is required
to make a final image of a given size. This means that lenses which seem
soft on film will seem softer on digital.
3 Some people claim that CA is worse with digital. That impression might
be caused partly by the need for increased magnification, and partly by
the opportunity that digital offers to examine an image at very high
magnification. In other words, it enables people to be more critical.
Either way, software tools can eliminate CA fairly effectively.
4 I haven't heard anybody say that a particular lens that is
well-thought-of on film is actually bad on digital. Bill Robb, by
contrast, reckons that a 77 Ltd is a better portrait lens on digital than
it is on film.
All the Pentax DSLR bodies have the same chip, but it is said by some
people that there are some processing differences, at least with JPEG.
However, whether the results are discernably different, I don't know. I
don't see why there should be any difference with RAW.
All the new DA lenses seem to be very sharp.
John
On Mon, 09 Jan 2006 17:39:57 -0000, Gonz <[EMAIL PROTECTED]> wrote:
Wow. Sounds like you are thinking about making the leap?
rg
J. C. O'Connell wrote:
Anybody know of a website(page) yet that
tests the performance of ALL Pentax Lenses on
Pentax DSLRS ( K and or M42). Since most
of these lenses were designed for film
rather than digital it would be very nice
to have some specific data on the APS digital performance of them,
comparisons, etc.
Secondly, are all three (four) of the Pentax
DSLR bodies so far identical in imaging
quality ( same sensors and processing, etc.)
???
thanks in advance,
jco
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