Weia

Because it's a projector lens the white doesn't matter. Light is coming out of the lens, there is no reflection.

Please add some 1:1 pictures of very tiny insects to the gallery.

Noise depends on the measures of the pixels. FF typically has only a bit bigger pixels.

It's an f/1.7. Only when you make the same shot the DOF is the equivalence of f/3.3 or so. But it remains an f/1.7.

Indeed. Quite much of the comments in most topics are empty. Annoying.

At 1:2 or 1:1 the magnification is important, not how they do it internally.

Is this generalisation correct: never compare camera's of different sensor size. Someone chooses a certain sensor size for certain valid reasons (for that particular person) and after that can...

You'll have to like tulips, but I don't.

Nice interview about the intricacies of cinema lenses: https://www.youtube.com/watch?v=q1n2DR6H7mk

No, you should have different curvature for every focal length...

Very interesting. Manufacturers publish diagrams, but without knowing focal length of each element it is difficult to judge what is going on. The first four elements of the Otus together maybe have...

Maybe they have so many elements because they do not use glass with impressive and useful properties, but low transparency at some thickness.

It's not a 50mm f/1.4, it has the same DOF. But it is a f/0.95 with all its design problems. So well done.

I have a Sigma f/8 600mm from 1981 for my Olympus OM-2. I have had much pleasure taking pictures of birds, but when I mounted it (via an adapter) on a digital Olympus E3 (2007) quality was really...

This is another type of volcano.

"so what was safe during the making of Boyd and Niewenhuis's video may no longer be safe" In fact the whole hill where most shots were taken is now covered by a thick layer of lava!

A picture with as few topography as possible, the sun is shining, so no idea about directions. Very inexperienced it seems.

Less correction as a positive thing??

What is the AI doing, compared to simple bicubic upscaling?

41 has no lines to judge that.