37-140 mm F3,5 Foton
lens housing parts
Variator and compensator components.
the rear optical block
aperture module.
Foton zoom lens collimating.
The test picture of Foton zoom lens with difference position of glass components.
Can see a sharpness of central line.
The result of collimator test after collimating of flange focal distance focus point coincidence.
Zoom = 37 mm
zoom = 40 mm
zoom = 50 mm
zoom = 60 mm
zoom = 75 mm
zoom = 100 mm
zoom = 125 mm
zoom = 140 mm
The result of " Point" test
zoom = 37 mm
zoom = 50 mm
zoom = 75 mm
zoom = 125 mm
zoom = 140 mm