Nikkor-P.C 8.5cm f2, early type in Leica screw mount. Manufactured around 1949, with serial number 903x. This lens belongs to the second batch, the dummy-numbered 903 series, following the earliest 801 series which is said to have had around 300 units produced. This particular lens is the third one made in the 903 series.
Among the early units in the 903 batch, it is believed that about ten were made with a straight-cam helicoid instead of the later rotating type, and this lens is one of those rare examples. The shape of the helicoid ring also differs from that of later 85mm f2 lenses. A truly rare piece.
Produced in Japan under Allied occupation, with a tiny Made in Occupied Japan (MIOJ) engraving discreetly marked near the mount on the rear side of the lens barrel. It carries the sentiment of those who crafted it during that historical period.
The name ring is engraved with Tokyo. The optical formula is a 3-group, 5-element Sonnar type, with a focusing scale in feet. The lens alone weighs 546 grams, giving it a substantial feel.
This is the renowned lens used by David Douglas Duncan during the Korean War, which earned high praise and played a key role in showcasing the excellence of Japanese lenses to the world.
There are only very slight scuff marks, and the overall appearance is excellent. It clearly shows signs of having been very carefully preserved.
Fully overhauled in June 2025. Initially, many parts were heavily seized, making the disassembly and servicing quite difficult. According to the technician, this particular unit has unique internal mechanisms such as the helicoid, with a notably handmade feel compared to later models. Perhaps the assembly was done through a process of trial and error.
On our demo Leica M, there was a slight front focus tendency at wide apertures, but stopping down by one to two stops brought it within the depth of field. As this is a rare specimen, no adjustment to the focus has been made to preserve its original condition.
The front element shows minor cleaning marks, and there is slight coating deterioration on some surfaces, but the glass is clear and free from haze. This unit likely delivers the lens’s original optical performance.
Comes with an early one-piece original hood, an early metal push-on hood cap, a heavy rear cap, and a leather case. A rare piece worthy of any collection.
