Angle of View (Diagonal)     27°50'~6°15'     
Angle of View (Horizontal)     23°20'~5°20'     
Angle of View (Vertical)     15°40'~3°30'     
Closest Focusing Distance (m, ft)     0.85/2.79     
Construction (groups elements)     12 - 15     
Diameter x Length (mm) (Maximum)     70.0 x 111.2     
Drive System     Lead screw and rack system driven by stepping motor
Filter Size (mm)     58mm     
Maximum Magnification (x)     0.29     
Minimum Aperture     32     
No. of Diaphragm Blades     7     
Weight (g) (Approximately)     375