jamespjones Posted April 4, 2008 Share Posted April 4, 2008 Two questions: Obviously older cameras won't be able to control the aperture - I am assuming this means that it will always be at its widest setting. Can the F4 meter DX lenses? I know it can meter the non-ai, so I am assuming this would work. Second: If you are using it on a film camera, how are your results? Pictures or examples would be great. I am mostly curious because I shoot primarily a crop-frame camera, but being able to carry one lens to go real wide on a film body would be nice too. I know there is a Sigma full frame out there, but I am curious about this lens. thanks, James Link to comment Share on other sites More sharing options...
RaymondC Posted April 4, 2008 Share Posted April 4, 2008 afaik film bodies may work with dx lenses but you get severe vignetting because dx lenses are not full 35mm size. in terms of aperture control, afaik the aperture will be stopped down fully at f/16 or 22 or whatever. afaik. Link to comment Share on other sites More sharing options...
Michael R Freeman Posted April 4, 2008 Share Posted April 4, 2008 > "I am assuming this means that it will always be at its widest setting." For viewing yes. But as soon as the shutter opens, a DX lens will stop down to the MINIMUM aperture if used on older bodies that are incompatible with G lenses. > "Can the F4 meter DX lenses?" Yes, it can (center-weighted, spot or matrix). But since all DX lenses are also G lenses, they can only be used in P and S exposure modes on the F4. And of course there will be severe vignetting at some or all focal lengths (depends on the DX lens). Link to comment Share on other sites More sharing options...
jamespjones Posted April 4, 2008 Author Share Posted April 4, 2008 interesting; that would be problematic (the aperture closing). Link to comment Share on other sites More sharing options...
bravin_neff Posted April 5, 2008 Share Posted April 5, 2008 I hope this isn't too off topic, but I have a Nikkor 12-24 DX. I shoot it all the time on my N80 and F100 bodies. It works from 16mm and up. At 16mm, the corners are unsharp and there is light falloff. By 17mm everything looks pretty good. From 18mm and up, you would never knows the lens was not meant for "full frame." I tested a Tokina 12-24 f4 in a store once as well, and it behaved similarly. I answer because I had a similar concern with wanting only one lens to cover both DX or FX. The 12-24 DX is a great lens (wouldn't mind if it were f2.8 though). The odd thing is that it is wider on film than DX. Link to comment Share on other sites More sharing options...
jamespjones Posted September 21, 2008 Author Share Posted September 21, 2008 I ended up getting a 12-24 Tokina and it is working fine on my F4. Thanks. Link to comment Share on other sites More sharing options...
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