By Ked · June 2026
June 2026
If you are buying a film Leica M, viewfinder magnification is one of the few choices that changes how the camera actually shoots, and it is permanent: the finder is built into the body, so you pick it when you buy. It comes up constantly, so here is what the numbers mean and how to choose.
The magnification is how large the rangefinder image appears compared with your naked eye. A 0.72x finder shows the scene at 0.72 life size; a 0.85x finder shows it larger; a 0.58x finder shows it smaller and therefore wider. Two things follow from that. A higher magnification gives a bigger, more precise rangefinder patch, which makes focusing easier, especially with fast or long lenses, but it shows a narrower view, so the widest frame lines no longer fit. A lower magnification fits wider frame lines and is easier to use with glasses, but the patch is smaller and long lenses are slightly harder to focus.
Leica offered a choice of three magnifications on the M6 TTL, the M7, and the MP (and the 0.85x late in the classic M6 run):
The 0.58x and 0.85x finders were always scarcer than the 0.72x, and silver-chrome bodies were generally limited to 0.72x, so the wide and high-magnification finders cost more when you find them.
The early Ms predate the three-finder choice. The M3 has a 0.91x finder, the highest Leica ever fitted to an M, with a large, precise patch that is wonderful for 50mm and 90mm, but it has no 35mm frame line, which is why a 35mm lens for the M3 was sold with goggles, or used with an external finder. The M2 answered that by dropping to 0.72x with 35/50/90 frame lines, which is part of why the M2 is the better choice for a 35mm shooter or a glasses wearer. The M4, M4-2, M4-P, and M5 all use the 0.72x finder as well.
On the digital M bodies the magnification is fixed and not user-selectable, so this whole decision is really a film-M question. The digital Ms sit around 0.68x to 0.73x depending on the generation (roughly 0.68x on the M8 through the Typ 240 era, 0.73x on the M10 and M11), a deliberately moderate magnification that fits the wider frame lines a modern lens kit needs. What you cannot do is order a digital M in a different built-in magnification the way you can a film MP or M7. If you want a larger or more precise view on one, you add it rather than spec it: the screw-in 1.25x or 1.4x eyepiece magnifier still works on the digital bodies (it needs a thread adapter on the M10 and M11), and the electronic Visoflex finder gives a magnified live-view image.
No M finder shows lenses wider than 28mm, so for a 21mm, 24mm, or 18mm lens you frame with a shoe-mounted accessory finder, either a dedicated single-focal-length finder or Leica's variable viewfinder that covers 21mm, 24mm, and 28mm. You also use an external finder when a body lacks the frame line you need, such as a 35mm lens on an M3. Going the other way, if you shoot long lenses on a lower-magnification body, a screw-in 1.4x eyepiece magnifier enlarges the finder image to make 90mm and 135mm focusing easier, and it can be removed when you go back to wide work. Both are common, inexpensive accessories on the used market.
Match the finder to the focal length you actually shoot most. If that is 35mm or wider, or you wear glasses, look for a 0.58x, or settle happily for a 0.72x. If it is 50mm and longer, or you want the most precise focus, a 0.85x rewards you. If you shoot a bit of everything, or you ever plan to resell, the 0.72x is the no-regrets choice and the reason it is the most common finder by a wide margin. Browse current M listings on UsedCameraTracker, where the finder magnification is usually called out in the listing, to see what is available in the finder you want.