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Teleconverters RF vs EF

Started 1 month ago | Discussions thread
SafariBob
SafariBob Veteran Member • Posts: 3,852
Re: Teleconverters RF vs EF

your assumptions are 100% correct.

what a tc does is basically just crop the image, but it’s not that simple, since it is in the optical path.

if the angle of incidence is perpendicular, which it almost is for super teles then this does not matter, at least if it was perpendicular at the exit point of the tc as well.

there is a similar effect with nikon badged tamron lenses, everyone assumes they are the same, but the different thickness in optical stack will make a difference for wide angle (due to the angle of incidence as well).

for what it’s worth, I assume it’s better to be closer to the sensor, so the rf tc setup should be better

 SafariBob's gear list:SafariBob's gear list
Sony RX1 Sony a7R II Sony a7R IV Canon EF 400mm f/2.8L IS USM Sony 70-400mm F4-5.6 G SSM +3 more
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