Specifications : f=500mm / F6.3 Fixed Mirror Lens
Aperture Range : F6.3
Optical Construction : 7 Element in 6 Groups
Angle of View : 5
Minimum Focusing Distance : 2.0m (6.1ft)
Filter Size : 34.0mm (REAR) / 95.0mm (FRONT)
Length : 119.5mm (MAX)
Maximum Diameter : 98.0mm
Weight : 705g
Mount : T-Mount
Lens Coating : Multi Coat