On Apr 25, 2006, at 7:08 PM, Keith McGuinness wrote:
That's where I saw the difference: subjects at a distance.
With the Pentax lens, magnifying the picture, I could make out details
in subjects at long distances that I had not expected -- based on
experience with the Sigma -- to see.
That's a subjective impression, so I want to do some more standardised
tests.
I initially thought I was seeing limitations of the format or the chip
or whatever, so I shot at infinity with my 50mm f1.4 and my A* 200mm
f2.8, both of which were razor sharp. I have a sneaking suspicion that
perhaps the 24mm I have doesn't focus fully to infinity, or that
infinity is different between 35mm and digital, or different enough to
make a difference in this case.
-Aaron