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Fujinon 5cm f/1.2 | Fujinon 50mm F1.2 LTM Lens

March 17, 2018

The Fujinon 5cm f1.2 lens is an urban myth in the world of ultra fast lenses. It is seldomly seen and there is little information written on this highly collectible and ultra rare beauty.

This lens is commonly known as the Fujinon 50mm F1.2 LTM lens that is capable of competing against the Legendary Japanese ultra fast lenses such as the Canon 50mm F0.95, Zunow 50mm F1.1 or Nikkor 50mm F1.1 LTM lens.

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Production Versions

  • LTM Mount in Black & Chrome Version (Less than 800 units)
  • Nikon S Mount (Less than 50 units)
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Most of the Fujinon 5cm f/1.2 lens was offered in Leica Screw Mount in either Chrome or Black finishes. Fujinon also produced a few in Nikon S Mount for Nikon Rangefinders, which is reviewed here but they are never seen on the market and hidden away in cabinets by true collectors.

 

Build Quality 

The Fujinon 50mm F1.2 LTM is a compact lens for its fast aperture and the weight of the lens is relatively light. It is solid all metal construction but subpar compared to modern Leica lenses build quality. It balances well on Leica M Rangefinders due to its compact and solid lens body.

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Image Quality

The Fujinon 5cm f/1.2 offers spectacular image performance for a vintage ultra fast lens. When shooting at maximum aperture  of F1.2, the bokeh is exceptionally smooth and the rendering is very pleasant. The colour rendition of the Fujinon is towards the natural side with typical Fujifilm signature and the contrast produced is excellent as well.

There is no present chromatic aberration but the lens exhibits slight vignetting when shooting wide open due to been a vintage lens design. However, the sharpness increases significantly and vignetting goes completely away when reaching aperture of f4 or greater. Overall, the Fujinon 5cm f/1.2 provides stellar optical performance and produces eye-pleasing images. 

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Practical Use

The Fujinon 5cm f/1.2 lens reviewed here is in Nikon S Mount originally designed to be used on Nikon Rangefinders. However, through a custom made Nikon S to M Mount adapter by Amedeo, the lens will work flawlessly on Leica M Rangefinders. The Amedeo adapter is made with full brass and six bit coded with capability for rangefinder coupling.

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The focus ring is very smooth when turning during practical use. The aperture ring does not have clicks when selecting the aperture like modern Leica lenses and turning feels towards the loose end. 

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Specifications

Lens Mount: LTM | Nikon S


Production Year: 1954


Construction: 8 Elements / 4 Groups


Diaphragm: 12 Blades


Maximum / Minimum Aperture:  F1.2 - F16


Filter Size: 58mm


Weight: Nikon S / 305g | LTM / 403g

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Conclusion

The Fujinon 5cm f/1.2 lens is another legendary lens made in Japan by Fuji back in the 1950 to 1960s during the competition to produce world’s fastest lens along with Zunow, Canon and Nikon. It is even more rarer and seldom seen, which makes the lens most desirable among the world of ultra fast lenses.

 

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In Reviews Tags Leica, 50mm, Lens, F1.2, Nikon S, Fujinon 5cm f/1.2 Fujinon 50mm F1.2 LTM Lens, Collectible, Fujinon, Review, Rare, Rangefinder, 5cm, LTM, Leica M
16 Comments
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Fujinon 5cm f/2 | Fujinon 50mm F2 LTM Lens

February 28, 2018

The Fujinon 5cm f/2 is a rare lens released in Japan, nowadays commonly known as Fujifilm or Fuji 50mm F2 lens offered in original Leica L39 screw mount with rangefinder coupling capability. This lens was supplied as a standard lens of Leotax from 1957 to 1985.

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Build Quality

The Fujinon 50mm F2 LTM is a relatively large lens for its maximum aperture of f2 and it is equivalent to some f1.4 vintage lenses in terms of size. There are two production types with later models offered with a focusing lever. The lens had a black paint barrel design along with a chrome ring on top.

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Image Quality

The Fujinon 5cm f/2 lens is a stellar performer, it offers high image resolution and great optical performance. There is a tendency to flare wide open at f2 but when steps down to f4 and beyond, the sharpness increases significantly and image rendering is equally pleasant.

It is uncommon for a lens produced in 1950s to flare at f2. However, when narrow down f2.8 the flare suddenly disappears and the resolution is very high. The out of focus area rendering is both natural and eye-pleasing. In addition, the contrast and colour rendition is towards the lower side with signature Fuji colours.

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Fujinon 5cm F2 vs Fujinon 5cm F2.8

The Fujinon 5cm F2.8 is much smaller and lighter than the bigger brother Fujinon 5cm F2 LTM lens. It is still well constructed yet feels incredibly small in the hands, as it’s relatively compact compared to the Fujinon 5cm F2 lens.

The Fujinon 5cm F2.8 LTM lens is a step down in terms of maximum aperture but still renders very similar to the Fujinon 5cm F2 lens. When shot wide open, it’s out of focus area isn’t as creamy but very pleasing to the eyes. At aperture beyond F4, both lens produces classic image with signature Fuji colours.

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Specifications


Lens Mount: Leica Thread Mount | LTM


Production Years: 1950s


Production Numbers: 5000+ units


Construction: 6 Elements / 5 Groups


Diaphragm: 10 Blades


Maximum / Minimum Aperture:  F2 - F22


Closet Focusing Distance: 1m


Filter Size: 43mm

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Conclusion

The Fujinon 5cm F2 LTM is a rare lens that produces high resolution images with classic rendering in a fast maximum aperture at F2. It is a vintage lens design from the 1950s that offers the complete package as a classic daily lens with stellar optical performance.

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In Reviews Tags Review, 5cm, Rangefinder, F2, 50mm, Leica, Fujinon 5cm f/2 Fujinon 50mm F2 LTM Lens, Lens, Vintage, Fujifilm, F2.8, LTM, Fujinon, Fuji, Leica M
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