The shortlist

How I would choose a Leica M lens

Focal length first

A 28mm, 35mm and 50mm lens change how close you work and how much context enters the frame.

Size is part of it

A compact lens preserves the reason many photographers choose an M camera in the first place.

Speed has a cost

The fastest lens is rarely the lightest or easiest to focus, so buy the aperture only when you need it.

Best fast normal lens

Leica Summilux-M 50mm f/1.4 ASPH.

Current Leica Summilux-M 50mm f/1.4 ASPH. lens
Best for
Low light, portraits and photographers who prefer a normal field of view
Skip it if
You want the smallest lens or need more environmental context
My verdict
Choose the 50mm Summilux when speed and separation justify the extra size and price.

The current Summilux-M 50mm f/1.4 ASPH. version has 11 aperture blades, an integrated lens hood and a close-focus limit of 0.45m. Optical rangefinder focusing ends at 0.7m; the closer range requires Live View or an electronic viewfinder. Its f/1.4 aperture is useful for low light and subject separation, but careful focusing still matters.

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Best wide-angle M lens

Leica Summicron-M 28mm f/2 ASPH.

Current Leica Summicron-M 28mm f/2 ASPH. close-focus lens
Best for
Wide street scenes, travel, architecture and environmental portraits
Skip it if
You dislike working close or prefer a calmer, tighter frame
My verdict
The 28mm Summicron is the M lens for photographers who want the environment to remain part of the photograph.

The current Summicron-M 28mm f/2 ASPH. version adds an integrated hood and focusing down to 0.4m. The optical rangefinder couples only down to 0.7m, so closer photographs require Live View or an electronic viewfinder. Choose 28mm for scenes where the surroundings are a deliberate part of the picture.

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Best compact telephoto

Leica Macro-Elmar-M 90mm f/4

Leica Macro-Elmar-M 90mm f/4 collapsible lens
Best for
Travel, details and occasional portraits with a compact telephoto
Skip it if
Low light or very shallow depth of field is the main reason you want 90mm
My verdict
The 90mm makes sense as a specialist addition after you already own a normal or wide M lens.

The collapsible Macro-Elmar-M 90mm f/4 adds a compact telephoto view. Its close-up capability needs the optional Macro-Adapter-M and a suitable Live View or electronic-viewfinder setup. It is not a one-to-one macro lens on its own, and focusing a 90mm lens accurately is less forgiving than using a wider M lens.

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The specialist choice

Leica Noctilux-M 50mm f/1.2 ASPH.

Leica Noctilux-M 50mm f/1.2 ASPH. lens
Best for
Photographers who specifically want the rendering of the compact f/1.2 Noctilux reissue
Skip it if
You value compact handling, easy focusing or sensible value
My verdict
This is a distinctive luxury lens, not the practical Leica M recommendation.

The Noctilux-M 50mm f/1.2 ASPH. is a current reissue of a distinctive lens design, with a 1m minimum focus distance. Its appeal is its rendering rather than versatility or value. The Summilux 50mm is the more practical low-light starting point for most photographers.

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Keep it simple

If I could only buy three Leica M lenses

Start with one field of view and add another only when your photographs repeatedly ask for it.

The short answer

So, which Leica M lens should you buy?

If I were building a Leica M kit from scratch, I would start with the 35mm Summicron. It keeps the camera compact, works for the kind of street and documentary photography that suits an M, and makes it easier to learn one field of view before adding another lens.

Next step