Melles Griot 10X Beam Expander:
Input aperture 1.5mm, Exit aperture 22mm.
Transmission > 95% (450 - 750nm)
Minimum focus distance Is 2.5 meters.
Broadband anti-reflective coatings.
Size: 39.2mm Diameter x 157mm Length
Weight: 260 gm
Beam Expander body is made of anodized aluminum.
Melles Griot original part #09 LBZ 010, list price of $800+
Includes lined & padded wooden storage case.