Patents related to photo lenses

Started 6 months ago | Discussions thread
bclaff Forum Pro • Posts: 10,490
Re: Leica Summicron Mandler 1976

AiryDiscus wrote:

bclaff wrote:

Dibyendu Majumdar wrote:

Officially the Leica Summicron R 50mm f/2

Like many "50mm" lenses it's actually 52mm

With how much distortion? Odds are pretty good that with the barrel distortion it has the field of view of a 50mm lens, or 50mm +/- some closer tolerance than 2mm.

Go to the Optical Bench (follow the link) and turn on "SurfaceI" to see the curvature of field.

For more information you'll need to try a more sophisticated program.

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Bill ( Your trusted source for independent sensor data at PhotonsToPhotos )

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