Does the Leica M6 need a battery to work?

No. The shutter and all speeds are fully mechanical, so the M6 shoots normally without a battery. The two button cells power only the built-in light meter, so if they die you simply meter another way and keep shooting.

What is the difference between the M6 Classic and the M6 TTL?

The M6 TTL is slightly taller, adds TTL flash metering and uses a larger, more intuitive shutter-speed dial that turns the same direction as the meter arrows. The M6 Classic is more compact. Both share the same mechanical shutter and coupled rangefinder.

Leica M6: The Rangefinder Legend

No camera carries the mystique of the Leica M6. It is small, silent, mechanical and built to outlive you — the rangefinder that photographers save for years to own.

Ask ten film photographers to name the one camera they would keep if they could keep only one, and a surprising number will say the same thing: the Leica M6. Introduced in 1984 and produced into the early 2000s, the M6 sits at the sweet spot of the entire Leica M line. It is a fully mechanical 35mm rangefinder with one modern convenience the earlier models lacked — a built-in light meter — and nothing more to get in the way.

A short history

The Leica M system began in 1954 with the M3, a camera so well engineered that it arguably peaked at the very start. The M6 arrived thirty years later and distilled everything Leica had learned. It kept the bayonet M mount, the coupled rangefinder and the horizontal cloth shutter, and it added a compact, battery-powered TTL meter that reads light off a white patch on the shutter curtain. Later versions added a 0.85x viewfinder option and, in the M6 TTL, flash metering and a taller top plate. Collectors distinguish the original M6 Classic from the M6 TTL, and both remain sought after today.

Key features

Mount: Leica M bayonet, compatible with decades of M-mount lenses from Leica, Voigtlander and Zeiss.
Shutter: mechanical, cloth focal-plane, 1 second to 1/1000 plus bulb — works without a battery.
Meter: center-weighted TTL, shown by two red arrows in the viewfinder; the battery only powers the meter.
Rangefinder: bright, contrasty patch with selectable framelines for 28/35/50/75/90/135mm depending on version.

Why it is the dream 35mm rangefinder

The M6 is loved because it disappears. There is no autofocus motor, no mirror slap, no menu. You set the aperture, match the meter, focus by aligning the rangefinder patch and release a shutter so quiet it barely registers in a quiet room. That silence and the near-total lack of vibration let you shoot at slow speeds handheld and work close to people without disturbing them, which is why the M6 became the tool of choice for so much street and documentary work. The viewfinder shows the world outside the framelines too, so you see subjects entering the frame before they arrive.

Who it is for

The M6 rewards a deliberate photographer. If you love zooms, fast action and autofocus, a rangefinder will frustrate you. But if you shoot one or two prime lenses, think before you press, and value build quality that lasts generations, nothing else feels quite like it. It is also a genuine investment: good M6 bodies have held or increased their value for years.

Using one today

The M6 is refreshingly usable in the modern era. The meter runs on two common LR44 or SR44 button cells, and because the shutter is mechanical the camera keeps shooting even if the battery dies. Pair it with a 35mm or 50mm lens and you have a kit that fits in a jacket pocket. Loading film is via the removable baseplate, which feels fussy at first and second nature within a week.

Buying notes

Check the rangefinder patch for a clear, aligned image both horizontally and vertically. Confirm the meter responds and both arrows light. Look for shutter curtain pinholes by firing on bulb toward a light. Beware of dents to the top plate that can hide impact damage. Because demand is high, buy from a seller who has actually tested the camera rather than an untested estate find.

Lenses to pair with it

The M6 is only half the system; the lens completes it. The classic choice is a 50mm lens, the focal length the M rangefinder was designed around, giving a natural, undistorted view that suits portraits and reportage alike. A 35mm is the other great option and the favorite of many documentary shooters, wide enough for context yet tight enough to isolate a subject. Beyond Leica's own lenses, the M mount accepts excellent and more affordable optics from Voigtlander and Zeiss, which means you can build a kit at a range of budgets. Because rangefinder lenses have no mirror box to clear, they can be made small, and a 35mm or 50mm on an M6 stays genuinely pocketable.

Living with the M6 day to day

What surprises new owners most is how quickly the camera fades into the background. The exposure workflow becomes automatic: glance at the arrows, adjust aperture or shutter, focus, release. Because the meter reads a center-weighted area you learn to point it at the tone that matters, lock the reading and recompose. The frameline preview means you can anticipate a moment rather than react to it. Over weeks the M6 stops feeling like a tool and starts feeling like an extension of how you look at the world, which is precisely the loyalty it inspires. It is also worth saying that the M6 is fully repairable by skilled technicians decades on, so a good body is not a disposable purchase but something you service and keep. That longevity changes how you value it: rather than a gadget to replace in a few years, it becomes a companion you can hand down, and the running cost of ownership is essentially film, chemistry and the occasional service.

Verdict

The Leica M6 is not the cheapest way into film, but it may be the last 35mm camera you ever buy. It is mechanical, repairable, quiet and beautiful, and it teaches you to see. Clean, fully tested M6 bodies and matched M-mount lenses can be found at Boston Camera.