I want to order laser or water jet cut two cylinderical lens elements from single block of plexiglass or glass without need of mount because remaining block would carry the elements and could be painted light tight.
Yes , it is an anamorphic lens. I inspired with Elcan Leitz IMAX lenses and want to be the back focus distance might be zero , film would be slided traveled on surface of lens flat back element.
Here is the drawing of lens , because of they have same common vertical axis , laser or waterjet would be able to cut in short time.
Surface would be problem with laser plexi but not water jet glass.
Is it possible to design above lens with zero back focus distance or what would be needed to do ?
What is the secret of zero back focus distance ?
Mustafa Umut Sarac
Istanbul
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