Image Format/Circle:φ32 mm
Aperture:F1.8-F32
Dimension:φ52 mm L87-94mm
Focus:Infinity to 30 cm
Operating Temperature:Minus 0°to 40°
uv transmission 250 to 410nm:>85%
Image resoulution in UV band:MTF 30%@45LP/mm
Camera Mount:Nikon F
Front filter mount:M42*0.75
Working distance_object side:0.3m-inf
Back Focal Length_Image Side:7.8-15.4mm (inf-0.3m)