Leica 50mm f/.95 Noctilux-M ASPH. M-Mount Lens, Black, 6-Bit {60} 11602

Leica Noctilux-M 50mm f/0.95 ASPH: the fastest production M-mount lens ever made.

At f/0.95, this lens sits in a category almost entirely its own. The 8-element, 5-group optical design draws on five glass types with anomalous partial dispersion to control color fringing, while two large-diameter aspherical surfaces, ground and polished by hand, manage the kind of aberrations that would otherwise plague a lens at this aperture. A floating rear element maintains optical integrity down to the 1-meter minimum focusing distance, which matters when you're working close and wide open. Corner vignetting at full aperture measures a maximum of 3.2 stops, and distortion stays under 1%. Those are real-world numbers, not theoretical best cases.

Stopped down to f/5.6, the performance across the full image field is exceptional by any standard. But the point of this lens is f/0.95. Wide open, the center rendering is sharp with a characteristic softness toward the edges that Leica preserved intentionally from the earlier f/1 Noctilux. That rendering quality is why photographers seek this lens out specifically than just any fast 50mm. The 6-bit coding communicates lens data directly to compatible Leica M bodies for automatic EXIF tagging and vignetting correction in-camera.

At 700g and 75mm long, it's a substantial piece of glass on a M body, but the 73mm maximum diameter keeps it from becoming unwieldy. On the M-mount system, there is no electronic alternative to this aperture. That fact alone explains the demand.

Who It's For

Available-light documentary photographers working in dim venues or late evening will find f/0.95 gives them shutter speeds and ISOs that no f/1.4 lens can match. Portrait photographers drawn to shallow-depth rendering will get subject isolation at 50mm that is simply unavailable from any other M-mount optic. Street photographers shooting at night without flash can work candidly in conditions that would otherwise require pushing ISO to a breaking point. Photographers on Sony E, Nikon Z, Canon RF, or L-Mount systems can adapt this lens with a passive adapter and retain focus confirmation on mirrorless bodies.

Key Features

• Leica M-mount full-frame lens with f/0.95 maximum aperture
• 8-element, 5-group optical design with two large aspherical surfaces
• Five glass types with anomalous partial dispersion for color fringing control
• Floating rear element maintains performance at 1m minimum focusing distance
• 6-bit coding for automatic EXIF and in-camera vignetting correction
• Manual focus only with 75mm length and 73mm maximum diameter

FAQ

What makes the f/0.95 aperture practical for M-mount shooting?

The f/0.95 maximum aperture delivers genuine low-light capability on rangefinder bodies, where you're manually focusing and metering by eye. You gain roughly 11% more light than the f/1 Noctilux predecessor, which translates to faster shutter speeds or lower ISOs in dim conditions without electronic assist.

How much does vignetting affect the edges at full aperture?

Corner vignetting peaks at 3.2 stops at f/0.95 in full-frame format-significant, but manageable. The 6-bit coding triggers automatic vignetting correction on compatible Leica M bodies, and most of that fall-off is intentional optical design, not a flaw. Stop down to f/2 and it drops substantially.

Does the lens perform well wide open or do you need to stop down?

Wide open at f/0.95, the center rendering is sharp with a characteristic softness toward the edges-this is preserved from the earlier f/1 design and is why photographers specifically seek out the Noctilux rather than choosing any fast 50mm. Stopped down to f/5.6, corner-to-corner performance is exceptional, but the point of owning this lens is shooting wide open.

What's the minimum focusing distance and how does it handle close work?

Minimum focus is 1 meter (3.3 feet). A floating rear element maintains optical integrity at that distance, so you can work close and wide open without degradation-critical when shallow depth of field is both your creative tool and your constraint.

Can you use this lens on digital M bodies other than Leica?

No. This is Leica M-mount only, which means Leica M-series rangefinders: M10, M11, M6, M7, and compatible digital bodies. The 6-bit coding is Leica-specific for automatic EXIF and vignetting correction; other M-mount systems won't read the lens data automatically.

How heavy and long is this compared to other 50mm options?

At 700g and 75mm in length, it's substantial on an M body, but the 73mm maximum diameter keeps it balanced. There's no electronic M-mount alternative at f/0.95, so if you need that aperture in the M system, you're carrying this weight.

Is distortion a practical problem?

No. Distortion measures under 1%, which is barely perceptible in real work. The slight barrel distortion won't affect rangefinder framing or require correction in post for most shooting situations.