A7iii, final 3 lenses

A7iii, final 3 lenses

I took the A7iii on our family dog walk in the woods today with the final 3 lenses I wanted to try with it, along with the Metabones V adapter: my Canon EF 70-200mm f/4 L, Canon EF-S 60mm f/2.8 macro, and Canon EF-S 10-22mm f/3.5-4.5. The metabones adapter was the only choice for this, as it will allow the use of the crop (EF-S) lenses which the MC-11 won’t.

First the 70-200mm, which performed just as I expected it to, very well. It may seem a little redundant to have 2 versions of the same lens (this and the EF 70-200mm f/2.8 IS L II which I was using the other day), but the f/2.8 version is both stabilized and a beast in low light, however I kept this this version when I got the other as, while being a stop slower and unstabilized, it is less than half the weight- something that becomes even more attractive when it is paired with a svelte little body like the A7iii. And with the in-body stabilization it is now a stabilized lens too 🙂

Then it was on the main event, my two EF-S, crop lenses. The A7iii is smart enough, if you want it to, to automatically switch to crop mode when it detects an APS-C lens (and it detected them perfectly through the Metabones adapter), but you can also turn that off if you want to. When in crop mode it is only using the center area of the sensor, so the image drops from being 24MP to 10.8MP, but that didn’t seem to present any serious issues from what I see. One final note, the Sony uses a 1.5 crop factor rather than the 1.6 that Canon’s APS-C bodies do, so I was interested to see if that would present any vignetting issues- but it didn’t seem to.

First the EF-S 60mm f/2.8 macro, one of my favorite lenses before I went full-frame- I even looked into modifying it to work on my 5Diii as is apparently possible.

As you can see from the above images, there are no vignetting issues in crop mode, and with the crop mode off the vignetting is much less than I was expecting, especially when focused at macro distances. This makes this lens totally usable for macro shooting on this camera, allowing the full sensor to be used and only requiring minimal cropping in post- this makes the final decision for me that I will be getting the Metabones adapter!

However the EF-S 10-22mm f/3.5-4.5 is not so lucky…

The first image is with lens hood (which is comically small on this lens anyway, and the second is with it off 🙁

But as you can see by the rest of these images, with the crop mode on it becomes a 15-33mm lens and works very nicely (I will use the equivalent focal length in the captions) and is no slouch at pretty close focusing itself…

Tomorrow will be the final test. I will take the A7iii and the Metabones with me to work and do some shooting both during the services and after to see how it all works in a real-world situation. I will probably mostly stick to my two main workhorse lenses, the Canon EF 70-200mm f/2.8 IS L II and the Tamron 24-70mm f/2.8, but I think I’ll take my EF 24-105mm f/4 IS L and my EF 70-200mm f/4 L as well and throw them on occasionally to see how they perform too 🙂 More tomorrow then…


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