Ultron 75mm f/1.9
Cosina Voigtländer · Leica M · 2023 · 7 elements in 5 groups, all spherical
Also known as: Voigtländer Ultron 75mm f/1.9 VM · Voigtlander ULTRON 75mm F1.9 VM · ULTRON 75mm F1.9 SC · ULTRON 75mm F1.9 MC · Ultron 75/1.9 · Cosina Voigtlander 75mm f1.9 Ultron Leica M · フォクトレンダー ULTRON 75mm F1.9 VM · フォクトレンダー ウルトロン 75mm F1.9
Variants & identification
| Variant | Mount | Years | Serial ranges | Production |
|---|---|---|---|---|
| SC single-coated, black paint (2023–2025) | Leica M | 2023–2025 | — | — |
| MC multi-coated, matte black paint (2023–2025) | Leica M | 2023–2025 | — | — |
- Specifications, price, release date and the July 2025 end of production are from Cosina's Japanese discontinued-product page; the 23 January 2023 announcement and the ¥110,000 tax-inclusive price are from Digital Camera Watch. Amateur Photographer's report of the UK launch gives £699 for either coating.
- Cosina states the minimum focus as 0.5m but the rangefinder coupling range as infinity to 0.7m: the last 20cm of the helicoid is for live view or an electronic finder, and a rangefinder will not follow it.
- Three of the seven elements are partial-dispersion glass, per Cosina's launch material as reported by Amateur Photographer.
How to tell them apart
- Engraved ULTRON 75mm F1.9 with SC or MC; VM bayonet, rangefinder coupled to 0.7m, helicoid on to 0.5m
- 49mm filter thread, twelve aperture blades, f/1.9 to f/16
- φ56.8 × 54.1mm and 290g — the whole optical block moves as one unit, which is why it is so short
- Metal screw-in hood and metal hood cap in the finish of the lens
SC single-coated, black paint (2023–2025):
- Gloss black paint barrel; SC in the name for single coating
MC multi-coated, matte black paint (2023–2025):
- Matte black paint barrel; MC in the name for multi coating
- SC single-coated, black paint (2023–2025): Released 7 February 2023 at ¥100,000 pre-tax, the same price as the MC lens; Cosina lists production as ended in July 2025. The single coating is Cosina's nod to classic rendering; Matt Osborne found the difference from the MC lens smaller than expected, with the SC's gloss paint the more obvious tell since it shows dust and fingerprints.
- MC multi-coated, matte black paint (2023–2025): Released 7 February 2023 with the SC lens and ended with it in July 2025. The version both BastianK and Osborne recommend: better transmission and flare resistance without darkening the image, and a finish that stays cleaner.
Specifications
- Formula
- 7 elements in 5 groups, all spherical
- Construction
- 7 elements / 5 groups
- Aperture range
- f/1.9–f/16
- Diaphragm blades
- 12
- Min. focus
- 0.5 m
- Dimensions
- 56.8 × 54.1 mm
- Weight
- 290 g
- Filter
- 49 mm
- Years manufactured
- 2023–2025
- Country
- Japan
- Coating
- Single-coated (SC) or multi-coated (MC), sold as two versions
- Original price
- ¥100,000 pre-tax, SC or MC, at the February 2023 launch (today ¥103,000); £699 in the UK and $699 in the US
What reviewers say
- BastianK (phillipreeve.net) (blog) — Very good sharpness where it matters, excellent bokeh, good sunstars and the closest focus of any 75mm M lens at 0.5m — against pronounced optical vignetting wide open, slight focus shift, inconsistent flare resistance and softness at minimum distance at f/1.9; the Nokton 75/1.5 controls vignetting better for $200 more, and he recommends the MC over the SC.
- Morten Byskov (5050 Travelog) (blog) — The MC lens adapted to a Fujifilm GFX 50R and a Nikon Zf: image quality that slightly exceeded expectations, a warmer tone than the native lenses, very pleasant twelve-blade bokeh and usable subject isolation at 50cm, bought for its compactness and build — with vignetting at every stop on the larger sensor that turns hard-edged as it is stopped down.
- Matt Osborne (MrLeica) (blog) — Both coatings shot side by side on an M240 and an M6 in Italy and Poland: the SC versus MC results were less different than expected, the SC a shade more artistic and the MC cleaner, both fairly plain vanilla next to vintage glass and solidly sharp by f/5.6; notably smaller and lighter than the Nokton 75/1.5 and the better traveller, though he kept the Nokton for portrait separation and recommends the MC.
- Jörg-Peter Rau (Macfilos) (blog) — On an M10, an M10 Monochrom and an SL2 the MC lens is remarkably small for its speed at 290g, focuses in about 100 degrees down to 0.5m where only an electronic finder can follow, shows a certain softness wide open and a slightly messy background with cat's-eye highlights toward the edges, and comes in at €749 — a competent portrait and stopped-down landscape lens with compromises in sharpness and vignetting.
Optical formula — 7 elements in 5 groups, all spherical
History
Cosina announced the Ultron 75mm f/1.9 VM on 23 January 2023 and released it on 7 February, at ¥100,000 before tax in either of two coatings: SC, single-coated in gloss black paint, and MC, multi-coated in matte black. It was the third fast 75 of the revived brand after the Heliar Classic f/1.8 and the Nokton f/1.5, and it took a third route. Seven elements in five groups, three of them partial-dispersion glass and none of them aspherical: Cosina’s stated design was to leave a moderate amount of spherical aberration in place so that the plane of focus stays clear while the out-of-focus areas go rich and large. The whole optical block moves as one unit to focus, which is what makes the lens 54.1mm long and 290g on a 49mm filter thread, and it has twelve aperture blades, f/1.9 to f/16. One number needs reading carefully: the minimum focus is 0.5m, the closest of any 75mm M lens, but the rangefinder coupling runs from infinity to 0.7m. The last 20cm of the helicoid is for live view or an electronic finder, and on a Bessa or an M6 the rangefinder simply stops following.
The two coatings are the two variants; there is no silver lens. Both ended together — Cosina lists production as finished in July 2025, after two and a half years, with no successor named — so the lens is now a used-market purchase with a short window of supply behind it. The SC and MC engravings and the gloss versus matte paint tell them apart at a glance, and Matt Osborne, who shot both side by side on an M240 and an M6, found the optical difference smaller than expected: the SC a shade more artistic, the MC cleaner, both fairly plain vanilla next to vintage glass, and the gloss SC barrel the one that shows every fingerprint. He and BastianK both recommend the MC.
Reviewers like it and none of them calls it the best 75. BastianK at phillipreeve.net credits very good sharpness where it matters, excellent bokeh, good sunstars and the 0.5m close focus, and lists pronounced optical vignetting wide open, slight focus shift, inconsistent flare resistance and softness at minimum distance at f/1.9; against the Nokton 75/1.5, which controls vignetting better for $200 more, he finds the Ultron competitive on value and the Nokton the nicer object. Jörg-Peter Rau for Macfilos, on an M10 and an M10 Monochrom at €749, noted a certain softness wide open, a slightly messy background with cat’s-eye highlights toward the edges, and a remarkable gap to the APO-Summicron-SL 75 on a high-resolution sensor — a competent portrait and stopped-down landscape lens with compromises. Morten Byskov adapted the MC lens to a Fujifilm GFX 50R and a Nikon Zf, where the image quality slightly exceeded his expectations and the vignetting, at every stop on the larger sensor, did not. Osborne’s verdict was that it is notably smaller and lighter than the Nokton and the better traveller, and that he kept the Nokton anyway for portrait separation.
What to check: which coating, from the engraving and the paint, since sellers sometimes write only Ultron 75; that the metal screw-in hood and its metal cap, in the finish of the lens, are present; and, on the body it will be used with, whether the focus shift BastianK measured lands where the rangefinder says it does at f/1.9 and again at f/2.8. Anyone planning to use the 0.5m end on a rangefinder body should know before buying that the patch will not move past 0.7m.
This history is AI-written, from the sources listed at the foot of the page. Where the record is silent it says so rather than filling the gap — but no human wrote these sentences.
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