I'm going to try an experiment when I get some time, but I
thought I'd also ask the group if anyone has tried this already.
There has been some discussion now and then about third-party
lenses and 'D' (distance-encoding) compatibility. I've heard
that Nikon didn't license the details of the 'D' function to
aftermarket lens companies, and that they had to reverse-engineer
it. This leads me to wonder how good a job the aftermarketers
did.
Among others, I own a Nikon 24-120 'D' lens and a Tokina 28-70
f/2.8 'D' lens. I'm going to set up some shots with flash that
should challenge the 'D' function. I'll try some different
matching focal lengths from both lenses. I'll probably use some
pre-'D'-era lenses of the same focal length too to see if I can
tell any difference.
I have a general idea of the shots I want to try, i.e. a mirror
in the scene that reflects the flash, a very dark-colored or
light-colored subject, the sort of stuff you see in the Nikon ads
that tout the capabilities of this system. Slide film seems like
the obvious choice to try to see the differece in exposure.
Has anybody tried this already? Does anybody think I'm stupid to
try?
VFN
