The mini S4 Primes are smaller, lighter-weight lenses that offer the same resolution, optical quality and reliability as the S4 T2 lenses, but at a T2.8 speed.
40mm T2.8 Cooke Mini S4
T-Stop Range - T2.8-22
Close Focus from Lens Front - 9.5"
Maximum Angle of View** Diagonal - 41°
Lens Font Diameter - 87mm
Weight - 3.74 lbs
** Max. Diagonal Angle of View for Super 35 Format
40mm T2.8 Cooke Mini S4