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Post by john101477 on Nov 24, 2009 23:46:14 GMT -5
hey I am trying to figure out what the i stands for in this lens? does it work on DSLR's or is it something i would have to manually focus all the time? anyone have any knowledge on this lens?
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Post by Steve (FloppyDog) on Nov 25, 2009 8:19:37 GMT -5
John, the "i" stands for "internal" which refers to the lens having an integrated motor for the auto-focus function. The AF-i's are older lenses (replaced by AF-s) and are used on cameras that don't have the focus motor in the camera such as the D40. I don't know how well it would work on your D90.
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Post by jimhobson on Nov 25, 2009 12:44:32 GMT -5
Also the older lenses (pre-digital) do not have the rear element coatings needed to reduce digital sensor flare (coatings are different than film lenses), therefore reducing image quality. So I've been told.
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Post by john101477 on Nov 25, 2009 23:15:02 GMT -5
Thanks guys. wanted to do a little reserch before I made a bid on one that is semi local. was not sure if this would creat the same issues some of the older lenses do for digital or not.
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