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Thank you for posting this. I still think of lenses as just a tuple of (focal length, f-number), and can't understand why two lenses of the same "spec" can be d
by cytzol 15y ago
Thank you for posting this. I still think of lenses as just a tuple of (focal length, f-number), and can't understand why two lenses of the same "spec" can be different. Probably a bad mode of thinking to be in.
- justincormack 15y agoLook up lens design and you will find it is very complex. Actually getting a flat field is pretty complex.