I just tried my DA 16-45 with a Sigma 1.4 AF teleconverter on a Pz-1p.
There is little light falloff visible in the viewfinder and any focal
lengeth, though I don't think I can reach a conclusion based on that. I
don't trust my eyes to see a couple EV in light drop off, which would be
pretty obvious (though correctable) in a digital or film exposure. I'll
try running a roll of film through the camera iwth TC and DA lens combo
to get a real sense of how it works. I was surprised that the Pz-1p AF
wored ont he DA lens with the 1.4x converter, since it is not so hot
even on lenses without a converter...
Mark
On 1/27/2014 3:38 PM, Darren Addy wrote:
Someone suggests taking any 1.4x teleconverter and putting one of the
problematic (non-full-frame-covering) DA lenses on a full frame Pentax
film camera and seeing what it looks like.
So I just took a DA 16-45mm and stuck it on a ME body. Vignettes hard
at the corners at 16mm. Then I put a Rear Converter K T6-2x on it and
checked again. No vignetting at 16mm (though now it is a 32-90mm), I
don't have a 1.4x to test here at work with me, but I'm pretty sure
that would allow it to cover the corners at 24-63mm also.
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