Patents related to photo lenses

Started 6 months ago | Discussions thread
bclaff Forum Pro • Posts: 10,483
Re: Sigma ART 70mm f2.8 Macro
1

Dibyendu Majumdar wrote:

https://patents.google.com/patent/JP2019144441A/en

Of the 7 examples in this patent 2 were broken and needed repair.

But one of those broken ones turned out to be the lens we were after:

This is the level of fit I like to see.

The link is here .

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

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