Fujifilm Fujinon-L 5cm f/2.8

Fujinon-L 5cm f/2.8 LTM

The Fujinon-L 5cm f/2.8 LTM is a Japanese Leica screw-mount standard lens made by Fuji Photo Film for Leotax rangefinder cameras. It appeared in 1957 and was supplied as one of the standard lens options for the Leotax system, alongside the faster Fujinon 5cm f/2 [1]. The lens is especially notable because it uses a 5-element, 4-group Xenotar-type optical design, an uncommon construction among Japanese Leica screw-mount normal lenses of the period [1][2].

The lens is built in Leica L mount / L39 and uses a rotating helicoid, meaning the aperture index rotates with the focusing movement. Koiwide documents the lens with a 1 m minimum focusing distance, 10 aperture blades, f/2.8 to f/22 aperture range, 40.5 mm filter diameter, and Leica L mount [1]. It was positioned below the faster Fujinon 5cm f/2, but its optical construction was more sophisticated than many budget standard lenses, giving it strong collector interest among Japanese LTM lens users.

For LeicaLensList, this entry should be kept separate from the Fujinon 5cm f/2 LTM, Fujinon 5cm f/1.2 LTM, Fujinon 3.5cm f/2 LTM, and fixed-lens Fujica rangefinder lenses. The Fujinon-L 5cm f/2.8 is collector-relevant because of its Leotax connection, relatively limited production, distinctive black and silver barrel design, and uncommon Xenotar-type formula. Its rendering is often described as sharp and high-contrast, but surviving examples should be checked carefully for haze, cleaning marks, coating wear, and helicoid condition [2][4].

History

Development and Launch

The Fujinon-L 5cm f/2.8 was introduced in 1957 as part of the late Leotax rangefinder lens ecosystem [2]. CameraFan identifies it as a standard lens for the Leotax series, which was produced by Showa Optical Works as a Japanese Leica-copy camera line from 1940 to 1959 [2]. Leica Copies Japan also notes that Leotax T2 examples are found with Fujinon f/2 and Fujinon f/2.8 standard lenses, confirming the f/2.8 lens as part of the Leotax supply context [3].

Production Evolution

Koiwide describes the lens as being supplied for Leotax around 1957 to 1958, mainly as the lower-priced companion to the Fujinon 5cm f/2 [1]. The same source notes serial numbers around the No.5500xx to No.5560xx range and estimates production at roughly 6,000 examples, but this should be treated as collector observation rather than an official factory total [1]. No major external revision is clearly documented for the f/2.8 version.

Special Variants

No major factory special editions, military versions, or alternative finish variants are widely documented for the Fujinon-L 5cm f/2.8 LTM. The known production form is the black and silver Leica screw-mount lens associated with Leotax cameras [1][2]. It should not be confused with the Fujinon 5cm f/2, which has a related but different optical formula, different serial range, and its own early and late handling differences [1].

Collector Notes

Collectors should verify the FUJI PHOTO FILM CO. engraving, Fujinon-L 5cm f/2.8 marking, L39 screw mount, Leotax system context, 40.5 mm filter size, 10-blade aperture, and rotating-helicoid operation. The lens has no infinity lock and does not use the same handling layout as many Leitz or Canon LTM standard lenses [1]. Important condition checks include internal haze, fungus, coating marks, cleaning scratches, oil on aperture blades, stiff focus grease, aperture index visibility after focusing, and whether the lens has been modified or incorrectly adapted. Because documented production appears limited and factory data is sparse, serial number, original caps, matching Leotax provenance, and clean optical condition are important for collector value.

Sources

• [1] Koiwide. キレ良くクールな次男坊, フジノン FUJINON 5cm f2.8. https://koiwide.com/j-lens_fujinon5028-1
• [2] CameraFan. 南雲暁彦のThe Lensgraphy Vol.27, FUJINON L 5cm F2.8. https://camerafan.jp/cc.php?i=1020
• [3] Leica Copies Japan. Leotax Rangefinder Cameras. https://leica-copies-japan.com/Leotax.html
• [4] Amemiya Hair. fujinon 5cmF2.8, L39, がよく解像して高コントラスト. https://amemiya-hair.tokyo/2022/09/fujinon5cmf28/