what causes the poor quality

Started 1 month ago | Questions thread
Sjak Senior Member • Posts: 4,514
Re: what causes the poor quality

An additional issue is that you're shooting wide open, since there is no aperture control.

Lenses typically are softer wide open.

On top of this, although the cams have similar MPs, the sensor on the Fuji is much smaller (and has smaller pixel pitch), and therefore will show "softness" earlier than the 35mm sensor of the 6d.) This potential problem will be emphasized with the TC-shots.

Lastly, AF-lenses typically have a very short focus-throw, which can make accurate manual focus very challenging. Not sure about this particular lens though, I don't use canon-lenses.

If you intend to shoot more EOS-lenses on your Fuji, maybe you can consider the Fringer-adapter? It will allow AF, aperture control and image stabilization to work. I don't know if this particular lens is supported by Fringer, but you could check that. Many members of the Fuji-board seem very happy with the results.

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