Self made large format epoxy lens

I’ done a long experimentation for made a large format self made epoxy resin lens. This is briefly how was.

At first I bought some epoxy resin for high thickness

Then l bought some cake molds

I made dozens of different lens

with different size

various curvature

and different thickness

and diverse primitive aperture

after many mistake finally I built the right lens

I put behind the plano convex a perfect round diaphragm 


first results