APO Nikkor 240mm F9 True Story

APO Nikkor 240mm F9 and Original Lens Boad

Specifications

Focal length 240mm
Max. aperture f/9
Min. aperture f/128
Lens construction 4 elements, 4 groups
Standard magnification 1X
Standard wavelength 380 - 750 milli-micron
Vignettings 0 %
Distortion 0.00 %
Image area 410mm
Overall working distance 960mm
Weight 220 g