No photo available for this lens
Production
1970 – 1974
Country
Japan
Optical
7 elements in 6 groups
Updated
Feb 15, 2026
Revuenon 55mm f/1.2
M42
Overview
The Revuenon 55mm f/1.2 MC is a Tomioka-designed fast normal sold under many brand names: Revuenon, Rikenon, Porst, Chinon, and others. Tomioka was the OEM behind many legendary fast 55mm lenses. At f/1.2, it offers razor-thin depth of field and distinctive rendering.
Verdict: A genuine f/1.2 that delivers. The Revuenon 55mm f/1.2 offers excellent bokeh, sharp performance even wide open, and distinctive vintage rendering. The warm color cast and low contrast at f/1.2 are character, not flaws. A hidden gem among fast fifties.
Optical Character
Bokeh
The lens has an unusual rear element shape that results in a distinctive, creamy bokeh character described as 'surreal' and 'baffling' towards the corners.
Color
The lens has a warm, yellowish-brownish color signature that gives images a pleasant, antiquated appearance.
Sharpness wide open
The lens is sharp, but has slightly lower contrast wide open, which can be corrected in post-processing. Stopping down to f/2 and beyond significantly increases sharpness and contrast.
Flare resistance
Well controlled with modern coatings.
Contrast
Good, not clinical. Vintage feel with modern correction.
Vignetting
Present wide open, adds character.
Community Insights
What people love
- Excellent bokeh
- Sharp even at f/1.2
- Razor-thin DOF
- Close focus (60cm)
- Well built
- 9 aperture blades
What people dislike
- No aperture click between f/1.2 and f/2
- Flare prone
- Low contrast wide open
- Warm color cast
Pro Tips
- All brand names are basically same lens
- f/1.2 is usable, not just marketing
- The glow at f/1.2 is a feature, not a bug
- Hood essential for contrast
Sources (3)
unknown-
https://allmyfriendsarejpegs.com/2023/11/07/tomioka-auto-yashinon-55mm-f1-2-lens-review/
unknown-
https://jonasraskphotography.com/2015/02/10/rikenon-55mm-f1-2-review/
Lens Heritage 2nd JSONsecondary
The Revuenon 55mm f/1.2 MC is a Tomioka-designed fast normal sold under many brand names: Revuenon, Rikenon, Porst, Chinon, and others. Tomioka was the OEM behind many legendary fast 55mm lenses. At f/1.2, it offers razor-thin depth of field and distinctive rendering.