What's the quality that gives some lenses (like Minolta G) a "3D" look?

Started Jan 29, 2013 | Discussions thread
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Optical physics...
In reply to gil, Jan 30, 2013

While some lenses have different coatings that give them "that look", it's mostly the physics of the shot that gives it the 3D illusion - f/l vs aperture and distance from cam to subject to background.

This one has both OOF foreground and background due to long f/l (400mm), fairly wide apeture for the distance (f/5.6) and good distance rations from foreground-subject-background:

This one has no OOF foreground. It still has some 3D look, but not as much as the previous one. These are with the 70-400G lens, so is fairly high quality with good micro-contrast as well. It all adds up and the more of these qualities and features are present, the better. I don't think it matters the brand of lens - just that the image is put together properly with decent glass.

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