Кажется
Aperture 100mm
Focal length 400mm
Focal ratio 1:4.0
Diameter of fully illuminated field 88mm - corrected flat field - airy disk < 20um
Optical Layout 4-lens SMC-coated apochromatic refractor with integrated field flattening lens for 6x4.5cm film format
Tube diameter 115mm
Weight 4.0kgs
Tube length 492mm
Dimensions of aluminium case 476mm x 162mm x 159mm
Weight of aluminium case 2.3kgs