By Ked · May 2026

Thinking About Focal Length: The Leica M Core of 28, 35, and 50

May 2026

If you ask ten Leica M photographers which focal length they shoot most, you'll get answers from one of three numbers: 28mm, 35mm, or 50mm. These are the lengths Leica has refined over seventy years of M-mount production, the lengths the system was effectively designed around, and the lengths that anchor every M shooter's working kit. Wider exists, longer exists, and both have their uses. But if you only own one lens for your M, it's almost certainly one of these three.

The choice between them is more consequential than people who haven't shot with them assume. A focal length doesn't just frame more or less of a scene; it changes what kind of pictures you take. The 50mm photographer and the 28mm photographer working the same situation come back with photographs that have little in common. This post walks through what each of the three really is, how it changes your way of seeing, and how to decide which one to live with.

50mm: The Tightest of the Three, the Original Normal

50mm is the focal length the original Leica was designed around. The first Leica, designed by Oskar Barnack and introduced commercially in 1925 with Max Berek's 50mm Anastigmat lens, established 50mm as the standard focal length on the platform. Leica has continued making 50mm lenses without interruption ever since. There is a Summicron 50mm, a Summilux 50mm, a Summarit 50mm, an APO-Summicron 50mm, a Noctilux 50mm. The Summicron 50mm family has been in continuous production since 1953, over seventy years. The 50mm is the spine of the M system.

Practically, 50mm is the tightest of the trinity. The frame includes one person, comfortably, or a small group only if they cluster. Backgrounds compress relative to subjects. The focal length is "normal" in the sense that perspective looks roughly the way the eye sees it for the main subject, but the angle of view is narrower than peripheral human vision. This is why 50mm photographs of a face look intentional and a 50mm photograph of a wide street feels cropped.

50mm is the focal length for:

• Portrait work, where the subject fills the frame at a comfortable working distance
• Single-subject editorial, where the photograph is about one thing
• Tight reportage where you can move close to your subjects
• Anything where you want the cleanest perspective rendering

It is not the focal length for indoor environmental work, street photography in tight quarters, or anything where you need to frame a person together with the context around them. For those, 50mm is too tight and you have to back up, sometimes back up into a wall.

50mm M-mount lenses are also the most abundant and (in aggregate) the most affordable of the trinity. As of May 2026 we track 584 active Summicron-M 50mm listings on UsedLensTracker typically asking around $1,515, the lowest of the three Summicron focal lengths and the deepest used market in the M system.

35mm: The Documentary Classic, the Default of the Working Press Photographer

If 50mm is the tightest of the three, 35mm is the natural middle. The angle of view shows the subject plus a comfortable amount of context: a person and the room they're in, two people interacting, a street with figures arranged in it. This is the focal length that defined Leica documentary photography from the 1950s onward, and the focal length most working press photographers picked when they only had time to shoot one lens.

The reason is simple: 35mm gives you the subject and the situation in the same frame. Magnum photographers shot 35mm because their photographs were stories, and stories need the subject and the context to share the rectangle. A 50mm forces a choice: subject or context. A 28mm pulls so much context in that the subject can get lost. 35mm holds both at once.

This is also the focal length that's hardest to learn. A 50mm has an obvious subject; a 28mm has an obvious context. A 35mm requires you to compose the relationship between the two. New photographers who jump to 35mm often produce flat, unstructured photographs because they haven't yet learned how to organize a scene that contains both a subject and its surroundings. Photographers who master 35mm produce the most flexible body of work of any single focal length.

35mm is the focal length for:

• Documentary and reportage
• Environmental portraits, where subject and context share the frame
• Street photography where you want both the person and the situation
• Travel work where you'll shoot a wide variety of subject types

As of May 2026 we track 388 active Summicron-M 35mm listings on UsedLensTracker typically asking around $2,880, almost twice the typical price of the 50mm Summicron, despite a smaller market. The 35mm asks more because more people specifically want a 35mm; demand exceeds the relatively limited supply.

28mm: The Wide End, the Environmental Choice

28mm is wider than what most people consider "normal." It includes the subject and a substantial amount of context, more than a 35mm. The perspective starts to look mildly exaggerated at close working distances, with foreground subjects appearing slightly larger relative to background than the eye sees. Used well, this is a tool: pulling the viewer into a scene by emphasizing what's near. Used poorly, it produces photographs where everything is in the frame and nothing is the subject.

The 28mm is the focal length for the photographer who values scene over subject. Architecture, landscape, environmental portrait where the setting carries equal weight to the person, interiors. Street photography at 28mm is a specific kind of street photography, closer to environmental documentary than the figure-in-context work that 35mm rewards.

Crucially, 28mm requires you to get close. The wide angle pulls in so much frame that subjects shot from a normal 35mm/50mm working distance appear small and isolated. To make a 28mm portrait work, the subject has to fill the foreground, which means the lens, and the photographer, are right there. This is intimate work and it scares some photographers.

28mm is the focal length for:

• Environmental portraits where the setting is part of the photograph
• Interior and architecture work
• Landscape, wide enough for grand scenes yet narrow enough to avoid extreme perspective distortion
• Street photography at close engagement distance

As of May 2026 we track 57 active Summicron-M 28mm listings on UsedLensTracker typically asking around $4,699, by far the most expensive of the three Summicron focal lengths despite the smallest used market. The 28mm asks more partly because demand is real, partly because Leica makes far fewer of them than the 35 and 50, and partly because Leica's 28mm ASPH design is genuinely one of the optical high points of the modern M lineup.

How to Choose

The honest decision is about how you want to photograph, not about technical specs.

• Shoot 50mm if your photographs are about a single subject, you like portraits, you want the cleanest perspective rendering, or you're working on a budget. The 50mm Summicron is the cheapest of the three and the system was designed around this length.
• Shoot 35mm if your photographs tell stories, you want the most flexible single-focal-length kit, you shoot documentary or travel, or you can't decide. The 35mm is the most versatile of the three and is the default working lens for a reason.
• Shoot 28mm if your photographs are about places and situations more than individual subjects, you're comfortable getting close to your subjects, or you specifically value the wider-than-normal perspective. The 28mm is the most demanding to use well but rewards photographers who commit to it.

Many M shooters end up with two of the three over time, most commonly 35 and 50, or 28 and 50. The 35-and-50 combination gives you the documentary working length and the tight portrait length. The 28-and-50 combination gives you the wide environmental and the tight portrait. The 28-and-35 combination is less common because the two focal lengths overlap too much in working role.

Almost nobody who shoots M-mount seriously ends up with only one focal length for life. But starting with one, and shooting it exclusively for at least a few months, teaches you what that focal length is good for and what it isn't. After that, you'll know whether the next lens should be wider or longer.

Browse current 28mm, 35mm, and 50mm M-mount listings on UsedLensTracker by lens family and focal length to compare prices and conditions across the full market.