Nikkor-O CRT 55mm F1.2

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The Nikkor-O 55mm f/1.2 CRT lens was produced in the early 1970's by Nikon to take photos of oscilloscope screens. This very rare speciality lens was made for industrial use to record faint cathode-screen traces and came with a long Leica Thread mount. It can be mounted on any Nikon camera with the LF adapter and a restricted focusing range is achieved by rotating it in the adapter. Alternatively, it can be modified by a master technician and converted to Leica M mount to be used on Leica Rangefinders.

The uniqueness of Nikkor-O CRT 55mm f/1.2 lens is not because of its curvature as used in monitoring CRTs but how incredibly sharp and good it is at resolving images. Once converted to Leica M Mount, the unique character is completely presented through its motion-like bokeh provides a sense of movement for still images.


Specifications

Lens Mount: M39


Production Year: 1970s


Construction: 8 Elements / 6 Groups


Diaphragm: 13 Aperture Blades


Maximum / Minimum Aperture:  F1.2 - F11


Closet Focusing Distance: ~1m


Filter Size: 52mm


Weight: 260g

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Gallery

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