6A65.32 - Rectilinear Lens

Code Number:
Demo Title:
Rectilinear Lens
Lens Correction
Area of Study:
Rectilinear Lens, Paper with writing or a photo.

The main purpose of a rectilinear lens is to correct for barrel or pincushion distortion.  

I believe that the 3 bookmarks have a 2 dimensional rectilinear lens grid pattern.

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