APS-C on a Sony a7R III

Started Mar 30, 2022 | Discussions thread
araudan Contributing Member • Posts: 921
Re: APS-C on a Sony a7R III

mouseclubhouse wrote:

I have a Sony a7r III, and I have the chance to get a 28-200mm APS-C lens. I know this is a full-frame camera, but I also know an APS-C lens can work on it, but at what cost? Am I correct that it would crop it more (my understanding is that a 200mm would be more like a 300mm?) and would it also negatively affect the quality?

The only 28-200 lens for E mount I'm aware of is by Tamron and it's a full frame lens.  You could use that lens in APS-C mode on the A7RIII.  Then you are correct that the field of view at 200mm would be similar to 300mm.

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