Aperture Range: 4-22
Filter Diameter: 86mm
Image Circle: 90mm
Shutter Type: Electro magnetical
Shutter Speed: 1/1000 - 60min
Durability: Tested to 500,000+ captures
Shutter blades: Carbon fiber material
Helical Focus Drive: Ultra fine manual focus
Focusing clamp: Optional reposition or detach w. 2 screws
Aperture module: 5 blades (cured blades)