Search for biconcave in Topics


Where to find biconcave lens?

I want to make the google cardboard VR, but I cannot find biconcave lens. Is there any household thing that contains biconcave lenses with about 45 mm focal lengh and can the spectacle lenses be used for this project? Also buying online is not an option for me.

Question by Ahtasham Ahmad Mohtashim    |  last reply