The 35BAS26-1 anamorphic unit is purposed for wide-screen film shots.

Manufacturer NPO "EKRAN"
Focal lengthf'22.1 mm
Angle of view2ω'94°44'
Geometrical relative aperturef:n1:2.8
Effective relative aperturef:nэ1:3.6
Optical system lengthΣd118.1 mm
Back focal lengthS'21.7 mm
Aspect ratio in the center for infinityA0.5
Lens housing lengthB124 mm
Housing max. diameterD142x100 mm
Rear mount diameterD'68 mm
Front element diameterd1127x90 mm
Rear element diameterd211 mm
Distance from rear end of the housing
to the focal plane
l20.7 mm
Frame size 18.7x22 mm
Weight 1.8 kg