The Canon 50mm f/1.4 LTM – Don’t Call it the Japanese Summilux

The Canon 50mm f/1.4 LTM – Don’t Call it the Japanese Summilux

2000 1125 Eric Charles Jones

The one constant in the universe is change, and the year 1957 was no exception. The USSR launched Sputnik, humanity’s first artificial satellite, ushering in the Space Age. In Europe, the European Economic Community was established with the Treaty of Rome. In America, federal troops were dispatched to Little Rock Central High School in Arkansas to enforce anti-segregation laws. The number one song in America was, “All Shook Up” by Elvis Presley, and television’s highest rated show was Gun Smoke.

In the world of photography and on the other side of the globe in Japan, Canon introduced the 50mm f/1.4 Leica Thread Mount (LTM) lens. It was then, and remains now, a jewel of a lens; a timeless and compelling photographic tool despite our ever-changing world.

Production History and Types

The Leica Thread Mount Canon 50mm f/1.4 is widely referred to as the Japanese Summilux. This is both deserved praise and a disservice. Praise because it speaks to its optical quality, and a disservice because it subtly implies that the Canon was nothing more than a Japanese copy of the German original. However, Canon’s 50mm predates Leica’s venerable lens by about two years.

Leica`s first version Summilux was made for just three years, from 1959 to 1961. Its re-engineered second version was produced in 1961 and continued until 2004. One could argue that Leica`s desire to re-engineer their 50mm f/1.4 Summilux so soon after it debuted was a direct result of the increasing quality of Japanese lenses.

Canon introduced Type I of its lens in 1957 and its production ran until the following year (serial numbers 10000-29390). Type II was introduced in 1959 and was produced until 1972 (serial numbers 29681-120705). After 1972, Canon would abandon the production of rangefinders and focus almost exclusively on SLRs.

Type I and Type II lenses use the same optical formula – six elements in four groups, based on the Planar design developed by Paul Rudolph at Carl Zeiss. The only difference between the two Types appears to be cosmetic. On the Type I lens, the distance scale is represented in meters only, while on the Type II the distance scale is represented in both meters and feet. My review is based on the Type II lens. As of this writing, prices for both versions range from around $200 USD for a fair copy, to around $350 USD for a mint piece.

The lens was made for the (M39/LTM) Leica thread mount. As such, it will naturally mount to any LTM mount camera. In addition, it can easily be adapted to other film cameras and today’s mirrorless digital cameras by way of numerous inexpensive adapters.

Specifications of the Canon 50mm f/1.4 LTM

    • Mount – M39 (LTM) Leica Thread Mount
    • Filter Size – 48mm
    • Elements/Groups – 6/4
    • No. of Aperture Blades – 9
    • Aperture Range – f/1.4 – f/22
    • Minimum Focusing Distance – 1 Meter (3ft)
    • Weight – 246g (8.7 oz)
    • Finish – Black, white, and chrome

Build and Use

Those who have used vintage lenses or those who are collectors of vintage lenses will immediately recognize the weight and feel of the Canon 50mm f/1.4 LTM in the hands.  The build of this glass is pure old school. It’s a completely manual lens. It’s compact. It’s all metal and glass. It has a good solid weight (246g) but it’s not too heavy for a lens of this type. The aperture ring is tight with full stop clicks. There is an infinity lock on the lens barrel (which can be distracting, but is easily removed if desired).

The focusing ring, at least on my copy, is firm. It’s textured, which allows for a confident grip throughout its focus throw, which is long. This is great when we need pinpoint focus, for example, when doing portrait work or have a slow moving or stationary subject. However, this long throw also makes it unfortunately easy to miss a shot in scenarios where rapid focus is required – running after small children or doing street photography.


The lens is sharp, especially for a lens from its era. Even when shot wide open it retains sharpness. At f/1.4 it also presents that vintage glow so characteristic of lenses from the 1950s. At this, its maximum aperture, it makes images with vignetting and lessened contrast. Naturally this vignetting becomes less apparent and contrast increases when the lens is stopped down.

Many lenses from this time period are prone to flare, and this lens is no exception, but the Canon 50mm does a satisfactory job at controlling it. But let’s get real, we shoot a vintage lens for its character, not for its corner to corner clinical sharpness.

The bokeh is smooth, organic, buttery and dreamy. But it can turn busy if you have a background with high contrast.

Shooting on color film, the lens renders colors quite well but a bit pastel and cool (the temperature can be corrected these days easily in Lightroom or your preferred photo editing software). With black and white film, it truly shines. I swear every time I view black and white images from this lens on my computer screen it cries out to be printed. I’m taken back in time. I desire to put on an old 12-inch vinyl record of John Coltrane or Chet Baker and savor an old-fashioned whiskey cocktail (on the rocks).

Final Thoughts

Is it fair to compare the Canon 50mm f/1.4 LTM to Leica’s 50mm f/1.4 Summilux? Not really. The Canon came first. And it’s still a better value. The original Summilux can’t be bought today for less than $2,000 compared to Canon’s (approximate) price of around $250. (An interesting side note – Leica’s current version, the Leica Summilux-M 50mm f/1.4 ASPH, is arguably the best 50mm lens on the planet and its price tag of $4,395.00 USD testifies to the claim.

All things considered, for its low price and the quality of images it delivers you can’t do much better than the Canon 50mm f/1.4 LTM. Here’s what you do – buy yourself a mint copy of this lens and take care of it, because it will take care of you for the next fifty years. It’s a lens that has character, it has class and it has remained timeless.

Buy your own Canon 50mm f/1.4 LTM lens on eBay here

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Eric Charles Jones

Eric was born and raised in Cleveland, Ohio where he developed a fascination for photography early in life exploring his father’s dark room. He is drawn to images that tell a story or capture the beauty in the mundane. These days Eric is living in Japan searching for his place of personal Zen and for that elusive decisive moment. Instagram here -

All stories by:Eric Charles Jones
  • Merlin Marquardt March 22, 2021 at 12:53 pm

    Very nice article. The word “flair” should be spelled “flare”.

  • Very nice camera and even better lens. Jealous of the photos, and for me the whiskey just straight.
    This article will teleport you back in time, I love it !

  • The Canon LTM range is a boat-load of hidden gems, and several are not so hidden anymore. Many of the original RF designs made their way to the FL lineup including the 50 1.4 and can still be found for relative bargain prices. My late version Canon 50 f1.4 FL remains one of my top 3 lenses, I’ve adapted it on to everything from Sony A7s to Arriflex Alexa’s.

  • Great review.
    This is my favorite lens. I have used, tried so many lens, I have so many …
    I simply love his character, his sharpness and bokeh. This is the best buy you can do !
    I cannot say more. The new Summilux is better, but not so far when we compare the price ratio !!! So, I am enough clever to make a choice of simply best ratio QUALITY/PRICE : this one is five stars *****

  • Another note: the Canon 1.4 units usually look pretty clean. In contrast, the 1.8 lenses are almost always hazy and have serious internal element problems. I have never seen a good explanation of what has happened to the 1.8’s, but the 1.4’s are fine.

  • Nice article, thank you. A small nitpick – it says the colour is “black or chrome”, whereas I believe it actually only comes in one colour scheme – a black, white and chrome combo.

    I have this beautiful lens, managed to get it for about $100 before the prices went up, so I’m happy about that.

    • You are correct. All versions have a black and chrome color combination. The body was chrome with the tip of the lens and the focusing ring black.

  • Fun fact: this lens’ parallel focusing guide is mounted vis two small screws visible on the flat rear surface of the mount. If your lens has play or a “click” when you twist the focusing ring, it’s possible that these two screws have loosened up over its 60-odd-year lifetime, and GENTLY tightening them may improve the situation. Just be sure to use a screwdriver that fits exactly, and don’t twist so hard that you mar the screw heads.

  • Question (if anyone is still monitoring this), I know the stock lens hood the the 1.4 LTM is called the S-50 which can be found on eBay from Japan. There is also a hood called the W-50-A which is also a clamp-on style hood. Any idea if the W-50-A fits or would work on the Canon 50/1.4 LTM? Thanks and great article. Beautiful lens.

    • Nicholson Christie February 17, 2023 at 2:42 pm

      A bit late responding, and I think you may have already discovered that the W-50 is for the 35mm f1.5. The 50 i.4 needs the S-50, punto. Shouldn’t be that hard to find. The all black one was purportedly only made for the Japanese market and is harder to come across, but looks really smart on the lens.

  • Great writeup of a great lens! Just another data point: on my early copy S/N 12463 the distance scale is in feet only.

  • Do you know if this lens is radioactive? I’m asking because of the yellow casting on the lens and I read that many of these legacy lenses that made at that time are radioactive. I recently bought this lens and I think it lives up to the “Japanese Summilux” moniker. The radioactive part is the only thing that worries me, and I don’t know much about it.

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Eric Charles Jones

Eric was born and raised in Cleveland, Ohio where he developed a fascination for photography early in life exploring his father’s dark room. He is drawn to images that tell a story or capture the beauty in the mundane. These days Eric is living in Japan searching for his place of personal Zen and for that elusive decisive moment. Instagram here -

All stories by:Eric Charles Jones