https://formlabs.com/blog/creating-camera-lenses-with-stereolithography/ https://formlabs.com/blog/creating-camera-lenses-with-stereo... It seems that dipping

https://formlabs.com/blog/creating-camera-lenses-with-stereolithography/ https://formlabs.com/blog/creating-camera-lenses-with-stereo... It seems that dipping the lens in resin is the best solution.