UF-1406 lens upgrade ??

Thinking about building a UF-1406……… yes the 1405’s little brother.

Dont have the light on hand just yet, but I thought one of you might already know where to find a coated lens the right size.

So, any ideas?

Thanks,
Jim

most aspherical lenses aren’t coated. that being said, there are a lot of crappy coatings out there that actually hurt performance