A different use of a teleconverter

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cosmicnode Veteran Member • Posts: 5,237
A different use of a teleconverter
1

FYA.

Recently on the Nikon forums there was a discussion of the F mount teleconverters for the 70-300mm , the front element protrudes into a lens preventing many lenses from fitting  the front of the TC hit's the rear element of the lens. The answer is to use a Kenko convertor with its flat front element. The convertor magnifies the centre of the image projected by the lens fitted . in the case of a 1.4 convertor from say 200mm to 280mm, this set me to thinking that if you fitted a DX lens to the convertor and then used it on a FF body you would not get vignetting, one poster tried this and found it to work. So if you want o move to FF from DX here is a way to reduce initial cost of obtaining FF lenses, so if it fits, a DX 35mm f2 lens becomes, a 49mm f2.8 on FF, of course you need the Kenko TC,

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Mike.
"I say we take off and nuke the entire site from orbit, it's the only way to be sure."

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