Magnification Factor: 2.5X
Barrel Size: 1.25" (31.7mm)
Optical layout 3 element APO design (air-spaced)
Clear aperture 23mm
Coating: fully multi-coated
Blackened Lens Edges: Yes. For suppression of internal reflections
Mechanical quality all design. Short length
Clamp mechanism precise lock by brass compression ring
Weight: 107g/3.77oz