Llewellyn Optics M12 6mm UV Lens
Apertures: F2.8, F5.6, F11.3
Fused Silica Lens Elements
Magnesium Fluoride (MgF2) coated lens elements optimized for 300nm L/4
Transmission: 80% @ 200nm, 87% @ 300nm, 84% @ 400nm
Two Filter 25mm Filter Adapters: One with 25mm x 5mm retaining ring adapter, One with quick change 25mm drop in filters
Quick Change 25mm Filter Adapter
25mm Filter Adapter Using Screw In Retaining Ring
Quick Change Filter Adapter Ring Installed On Lens
Retaining Ring Filter Adapter Installed On Lens
Using the quick change filter adapter. First, drop a standard 25mm diameter x 5mm thick unmounted filter into apapter.
Filter sitting in quick change adapter ring.
Screw the quick change adapter onto the lens. Done!