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They are all handheld shots. But yes a tripod should be used. I tested the adapter with my EF 100mm 2.8 USM Macro lens, also handheld and saw nothing wrong. However I would like to have tested it ...

I have taken some more photos and concluded that it is the field curvature that is stronger on the right side. At f/11 there is no perceivable difference across the field. To be clear I'm not ...

I have personally only used the Canon 10-22mm and Samyang 14mm. The Sigma is in a different class image quality wise. And from what I've seen from other peoples photos I think that the Sigma ...

Thank you. There is the risk I get one that is worse. That would be no fun. As you say, my copy is more or less evenly sharp at 18-24mm. But 14 is the most important FL.

Did you see the difference between left and right side? I'm not new to UWA lenses. Had the Canon 10-22mm for many years and it was my favorite lens until I upgraded to fullframe. The new Sigma is ...

In probably any other case I would agree fully. However, since this lens actually can make sharp edges at 14mm f/2.8, an amazing feat. I'd like both sides to be equal. Not a good side and a bad side.

Hi. I just got the lens and the first thing I noticed was a potential issue with the edge sharpness at 14mm, right side. This is the Canon version used with a MC-11 adapter on my Sony A7. On one ...

I'd like to see some samples! I don't think many have experience with this lens.

I see this often on old manual lenses with inferior coatings. Never seen it on a modern lens.

The first one lack that tack sharp crispness, the other two looks good when it comes to sharpness, but the editing makes it hard to judge them.

If you remove the barrel you will end up with the loose lens elements. You don't want that I think. The usual way to adapt projector lenses is to get a helicoid adapter.

That's good to hear! Thanks for testing, much appreciated!