3" dia. lens is aspheric on the CX side, not sure if it spherical or aspheric on the CC side.

There is about 1/2" wide ring on the outer part of the CC side that is flat and not used and is frosted.

Came from a large projection type assembly where this lens was inside of a larger aspheric 4 1/2" dia lens

that is available in my other sales. I held this up to sunlight and it didn't focus but made a spot about 6" dia. at a few feet. 

Mount in photos NOT included but is for sale in my other ads. 

I combine ship as well.