Alley in Pisa, Italy

by Lars Kotthoff

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66
votes
12answers
4k views

Why are lenses always round in shape?

Why are lenses round in shape although the image sensor is not? Why they can not be square or something matching the shape of image sensor?
50
votes
5answers
1k views

Is there development in the world of lenses?

Now, I'm not an expert, so if this post makes you laugh, you're welcome. Still, as far as I know there are basically two components that determine the potential quality of a camera's photos: Sensor ...