Leica 35mm f/2 Summicron-M Lens for M-Mount, Black, Canada {E39} 11310 (Version 4)

Leica's 35mm Summicron f/2: the M-mount standard bearer.

The Summicron-M 35mm f/2 Version 4 is one of the most studied lenses in the M-mount lineage. Built in Canada and wearing the E39 filter thread, this is the pre-ASPH generation that earned its reputation through optical character than clinical correction. Wide open at f/2, it renders with a signature that photographers have chased for decades, a quality of light transmission and gradation that makes files look less like captures and more like decisions.

At 35mm on the M mount, you're working in a focal length that maps closely to human peripheral vision, making it a natural fit for unposed work. The lens is small enough to disappear into a coat pocket alongside a M body, which matters when access depends on not looking like a photographer. The E39 filter thread keeps the front element well-protected without adding unnecessary mass to the barrel.

The Version 4 sits at a point in the Summicron's evolution where Leica had refined the formula without yet moving to aspherical elements, giving it a drawing style that later versions traded away in pursuit of edge-to-edge correction. For shooters who already know what they want from this focal length, this lens delivers it without compromise.

Who It's For

Street photographers working with M-mount bodies will find the 35mm field of view and f/2 maximum aperture well-suited to low-light alleys and fast-moving crowds. Documentary photographers drawn to compact, unobtrusive gear benefit from the lens's small footprint and classic rendering. Travel photographers who shoot wide on rangefinders appreciate the 35mm angle as a near-universal framing tool. Collectors and optical enthusiasts specifically seeking the pre-ASPH Version 4 character, its particular rendering of out-of-focus transitions, will recognize exactly what the Canadian-built E39 designation signals.

Key Features

• 35mm focal length optimized for rangefinder documentary work
• Maximum aperture f/2 for available light and subject isolation
• E39 filter thread keeps front element compact and protected
• Pre-aspherical optics prioritize rendering character over edge correction
• Canada manufacture, Version 4 of the legendary Summicron lineage
• Leica M-mount compatibility across film and digital bodies
• Mechanical construction with no electronic contacts required

FAQ

What's the difference between Version 4 and the ASPH Summicron 35mm?

Version 4 is the pre-aspherical generation - it prioritizes rendering character over edge-to-edge correction. Later ASPH versions flatten distortion and vignetting but trade away some of the signature light transmission qualities that made this lens iconic.

Why E39 instead of the typical 46mm thread?

The E39 thread keeps the front element smaller and the barrel more compact, which matters when you're trying to carry an M body and lens without announcing yourself. It also means the lens stays genuinely pocketable.

Is this the right 35mm for rangefinder work?

At 35mm on an M mount, you're working in a focal length that sits between documentary and intimate portraiture - it matches human peripheral vision, which makes unposed work feel natural. If you already shoot rangefinder, you know whether 35mm is your length.

How does the Canadian manufacture affect the lens?

Build quality is identical to German production. Canada-made Summicrons are fully respected - the Version 4 was produced across multiple manufacturing locations without changes to the optical formula.

What's the actual minimum focus distance?

Version 4 focuses down to approximately 0.7 meters (2.3 feet), typical for Leica M-mount lenses of this generation. Close focusing requires careful rangefinder alignment but is entirely usable.

Does this lens need a UV filter?

The E39 thread accepts standard 39mm filters. Given the front element's exposure, most shooters keep a clear or UV filter on permanently - it's cheap insurance against marks and cleaning.

Will this lens work on modern digital M bodies?

Yes. The Summicron-M 35mm f/2 is a mechanical lens with no electronic contacts, so it works identically on Leica film and digital rangefinders. On digital, the 35mm focal length behaves as true 35mm (no crop).