Repro Nikkor 85mm F1.0 Lens Element

Until now, the Micro Nikkor has topped the list of close-up lenses in brightness and resolution.
However, the new Repro Nikkor is several times brighter than the Micro Nikkor.
It also has much hihter resolving power, capable of more than 200 lines per mm over the entire picture area when stopped down to f/5.6 in full-size reproduction.
However, due to the high speed and correction of aberrations in the lens, magnification is limited within the practical range of 0.9X - 1.1X.
Another outstanding feature of the lens is that the entrance and exit pupils are located far behind the lens, which makes the principal rays (rays passing through the center of each pupil) run almost parallel to the optical axis.
This feature gives Repro Nikkor lens a great advantage when used as a relay lens.
It enables taking over of the image relayed from a front lens system and them by producing a full-size image.

Specifications

Focal length 87.5mm
Max. aperture f/1.0
Min. aperture f/8
Lens construction 12 elements, 8 groups
Standard magnification 0.9X - 1.1X
Standard wavelength 400 - 650 milli-micron
Vignettings 0 %
Distortion 0.0000 %
Resolution 200 lines/mm
Image area 24mmX36mm (43.2mm circle)
Overall working distance 224mm
Weight 640 g

Lens Dreaming

I traveled the country of Japan.
Daikon Radishes were sold in a farmhouse.
Even the lens was also sold.
Those were 100 yen(1 dollar) all.
Was it a dream?