By Ked · May 2026
May 2026
Of all the modern Leica M lens families, the Summarit-M line is the one shooters dismiss most casually. Half a stop slower than the Summicron at every focal length. Marketed at launch in 2007 as Leica's "affordable entry-level M lens family." Reviewed politely but rarely with enthusiasm. Discussed in online M-mount communities mostly as the answer to "what if you can't afford a Summicron." The result is that Summarit-M lenses sit in the M ecosystem the way a Volkswagen Golf sits next to an Audi A3: same parent company, same factory, much of the same underlying engineering, and quietly dismissed by buyers who'd rather pay the premium for the badge they actually want. Both cars get you down the road. One of them carries more social weight.
Most of that reputation is wrong, or at least misleading. The Summarit-M lenses are real Leica M designs, built to Leica's tolerances in Solms, with optical quality that produces files indistinguishable from the equivalent Summicrons for the vast majority of shooting situations. The half-stop slower maximum aperture is the headline difference, but it's not a meaningful one for most photographers. Where the Summarit-M line is genuinely worth buying, and where it isn't, depends on which focal length you're considering, not on the family name.
This post is a defense of the unloved Summarits and a guide to which ones are genuinely good buys in 2026.
Leica introduced the modern Summarit-M family in 2007 as a four-lens set at 35mm, 50mm, 75mm, and 90mm, all with a uniform f/2.5 maximum aperture. The launch positioning was explicit: these were intended as the lower-cost M-mount range, designed to offer Leica's optical character at prices below the Summicron line. Leica revised the family in 2014, with the same four focal lengths now at f/2.4 instead of f/2.5. That change was a marginal aperture increase (well under a tenth of a stop) alongside new optical formulae for several of the lenses and refreshed cosmetics. The f/2.4 versions are the current production. Used examples of both generations are common on the market today.
Construction is full Leica M. The lenses are smaller and lighter than the Summicrons and Summiluxes: a Summarit-M 50mm weighs 220g compared to the Summicron-M 50mm's 240g and the Summilux-M 50mm's 335g. The build is brass-and-aluminum, the focus throw is the same long, precise sweep as on the more expensive lines, the filter threads are 39mm or 46mm depending on the focal length. Mechanically, in hand, the Summarit-M is indistinguishable from a Summicron-M to anyone who isn't specifically looking for the differences.
Optically the lenses use modern aspherical elements at most focal lengths, contemporary multi-coating, and image-circle designs that are sharp across the frame from wide open. Side-by-side test charts have consistently shown the Summarit-M lenses producing resolution and contrast figures within a few percent of the Summicrons at any aperture stopped down to f/4 or smaller. At their respective wide-open apertures (f/2 for the Summicron, f/2.5 or f/2.4 for the Summarit), the Summicron has a small edge in corner sharpness and a modestly faster rendering, but the difference is much smaller than the price difference between the two lenses.
The conventional case against the Summarit-M is "f/2.5 is too slow for serious M-mount work." Let's be honest about what a half stop really means.
A half stop is the difference between ISO 6400 and ISO 9000, or between 1/60s and 1/90s shutter speed, or between f/2 and f/2.5 depth of field. In the modern high-ISO era (see our earlier post on fast lenses), a half stop of light-gathering is, frankly, no longer a meaningful constraint on what you can shoot. The Summicron's f/2 advantage was substantial in the film era when ISO 1600 was as fast as practical photographers could go and noise on color emulsions at that speed was visible. On a modern M11 shooting at ISO 6400 with confidence, the f/2 vs f/2.5 question is academic.
The depth-of-field difference between f/2 and f/2.5 is also smaller than it looks. At 6-foot working distance with a 50mm lens, the depth-of-field difference between f/2 and f/2.5 is less than an inch. For portrait work where you want shallow depth, the Summilux at f/1.4 is a meaningfully different tool. The Summicron at f/2 vs the Summarit at f/2.5 is essentially the same tool with a slightly different specification number.
What the Summarit-M lenses can't do is operate as fast lenses in the marketing sense. If you're buying a lens because you specifically want the f/1.4 or f/2 look (extreme subject separation, low-light handheld at slow shutter speeds, the "fast Summicron feel"), the Summarit is the wrong answer. For everything else, the half stop simply doesn't matter.
Summarit-M 35mm. As of May 2026 we track 27 active Summarit-M 35mm listings, which typically ask around $1,629. Compare to the Summicron-M 35mm at around $2,880: the Summarit is 57% of the Summicron's price for the same focal length, same Leica build, similar optical quality at working apertures. This is the strongest value play in the line. For shooters who specifically want a Leica 35mm but find the Summicron price punishing, the Summarit-M 35mm is the rational answer. Image character is slightly less prized in the collector market (which keeps prices down) but identical for working photographers' purposes.
Summarit-M 50mm. As of May 2026 we track 33 active Summarit-M 50mm listings, which typically ask around $1,291. Compare to the Summicron-M 50mm at around $1,515: the gap here is only about $220. This is the focal length where the Summarit-M is hardest to justify on price alone, because the Summicron isn't that much more expensive and offers a real f/2 advantage. If you're picking between Summarit-M 50mm and Summicron-M 50mm at similar condition grades, the Summicron is probably the better buy. The Summarit-M 50mm makes sense mainly for shooters who specifically want the smaller-and-lighter Summarit body or who find a particularly clean used example significantly below the typical asking price.
Summarit-M 75mm. As of May 2026 we track 25 active Summarit-M 75mm listings, which typically ask around $1,455. This is the standout. Leica does not make a Summicron-M 75mm: there is no f/2 75mm in the M-mount lineup at all. The options at 75mm are the Summarit-M 75mm f/2.4, the discontinued Summilux-M 75mm f/1.4 (rare, expensive, $5,000+ used), or the very expensive APO-Summicron-M 75mm f/2 (current production, $7,000+ new, $4,000+ used). The Summarit-M 75mm is by far the most affordable way to put a 75mm Leica on your M body, under $1,500 for a focal length that has no cheaper alternative. For portrait shooters or anyone who wants a between-50-and-90 short telephoto, this is the lens to buy. The 75mm focal length itself is underused on M bodies, and the Summarit at this length is the practical entry point.
Summarit-M 90mm. As of May 2026 we track 23 active Summarit-M 90mm listings, which typically ask around $1,249. Here's the surprise: the Summicron-M 90mm currently runs around $1,047, so the Summarit-M is more expensive than the Summicron at 90mm. The reason is supply. The Summicron-M 90mm has been in production for decades across multiple versions and there are many examples in the used market dragging the typical price down. The Summarit-M 90mm is a much smaller market (23 vs 192 active listings) and the smaller supply pushes prices up. At 90mm the value argument flips: buy the Summicron unless you specifically want the Summarit's smaller and lighter body, in which case you'll pay a small premium for that compactness.
The Summarit-M line is not a budget compromise so much as a different position in the M-mount catalog. Two of the four focal lengths are genuinely strong value buys (the 35mm, and the 75mm where there's no real alternative), one is competitive but no obvious winner (the 50mm), and one is paradoxically more expensive than its faster sibling (the 90mm).
The half-stop maximum aperture difference is not the disqualifier it's often presented as. Modern digital M bodies handle high ISO well enough that one-third or two-thirds of a stop of lens speed isn't the difference between a usable image and a noisy one. The depth-of-field difference is similarly minor at any working distance.
Who should buy a Summarit-M:
Who should skip the Summarits:
The reputation is mostly inertia. The lenses are real Leica optics at meaningfully lower prices than their faster siblings, at least at 35mm and 75mm. Both deserve more attention than they get.
Browse current Summarit-M listings on UsedLensTracker across all four focal lengths to compare prices and conditions, or filter to a specific focal length to dig in.