How Canon crushed Leica with the coolest accessory viewfinder system ever!

The incredible V-, VI-series Canon rangefinder 35s:
How Canon crushed Leica with the coolest accessory viewfinder system ever!

By Jason Schneider

The great Leica vs. Nikon vs. Canon rangefinder battle of the ‘50s still reverberates with a lot of passion, along with a momentous amount of malarkey. Nobody disputes the fact that both Nikon and Canon emerged from the ashes of World War II fiercely determined to create high quality 35mm rangefinder cameras to challenge the Leica and Zeiss Contax on the world market. Favorable reviews by Life Magazine photographers gave Nikon cameras and Nikkor lenses an early boost, and Canon followed up with the landmark Canon IIB, sporting an ingenious 3-magnification range/viewfinder, which evolved into the hugely successful Canon IVSB introduced in 1952. Then, at Photokina 1954, Leica lowered the boom, shocking the camera world by bringing forth the groundbreaking Leica M3, with a multi-frame parallax-compensating viewfinder, an M bayonet lens mount, a film wind lever, a hinged back, and much more. The engineers at Nikon and Canon were stunned, but to their credit, within 2 years both companies came out with new models designed to compete with the Wetzlar Wunderkind and its successors. Both Nikon and Canon steadily developed their elite rangefinder 35s eventually coming out with models including the Nikon SP of 1957-1960, the Canon 7 (1961-1964) and Canon 7s (1965-1967), all of which had muti-frame camera viewfinders with true projected parallax compensating frame lines that rivaled the Leica M4’s.

Canon VT Deluxe (VTD) showing parallax-compensating pin in hot shoe. It's fitted with Canon's...jpeg
Canon VT Deluxe (VTD) showing parallax-compensating pin in accessory shoe that tilted accessory viewfinders as you focused. Brilliant!

For all their conceptual brilliance, technological audacity, and exquisite craftsmanship, no Nikon or Canon rangefinder camera ever equaled the Leica M in terms of its seamlessly integrated functionality, mainly because neither one ever had a modern (fixed, wide diameter) bayonet lens mount. Nikon wisely ditched the complex less reliable vertical roller blind shutter used in the Contax and employed a Leica-style horizontal-travel focal plane shutter (mostly silk cloth, later titanium foil) in all their S-series rangefinder cameras. However, they stuck with a Contax-derived bayonet lens mount, which relies on a focusing helical built into the body. Canon famously soldiered on with the 39mm LTM screw mount, the same one used on all II- and III-series Leicas from 1931 to 1960, eventually adding a supplementary external bayonet to stabilize long teles. As a result, no Nikon or Canon rangefinder camera ever provided auto-indexing frame lines that come into view as you mount a lens. And obviously only the Leica M has a front-mounted spring-loaded frame line preview lever, a convenience lacking on the Nikon or Canin, which require that you turn a ring to change viewfinder frame lines.

Canion VI-L with single shutter speed dial, lever winf, parallax-compensating finder frame lin...jpg
The apotheosis of rangefinder Canon's? Many consider this lever wind Canon VI-L with projected parallax-compensating viewfinder frame lines the best of the breed. Canon's superb VI series was the last to include Canon's ingenious parallax-compensating accessory viewfinder system.

The Leica M cameras also score on their super bright, crisply defined rectangular rangefinder patches, which allow you to use the more accurate split-image focusing technique, especially with subjects having distinct vertical lines. Canon mostly used the classic round rangefinder patch, switching to rectangular in the 7-series, and Nikon used a rectangular patch ( \square in earlier models like the Nikon S), but in neither case was the focusing patch as crisply delineated as the one in M-series Leicas. Another plus point for the Leica M is its sleek rounded-ends form factor which Leica aficionados toout as more ergonomic and hand-holdable. I concede that the Leica’s rounded form is esthetically pleasing, but I have never had a problem comfortable hand-holding my vintage rangefinder Canons or Nikons, though I’ve never been a fan of the Nikon’s milled wheel focusing system inherited from the Contax.

Nikon took up the challenge posed by the Leica M3 by bringing forth the Nikon S2 in record time –it was announced in December 1954 and over 56,000 were produced by the end of production in June, 1958, making it the highest production Nikon S-series camera ever. It had a bigger, brighter life size (1.0x) range/viewfinder with a fixed reflected 50mm bright frame line, a single stroke lever wind and folding crank rewind, a standard PC sync terminal with X sync, shutter speeds upped to 1-1/000 sec plus B and T, a totally revised, upgraded shutter mechanism, and, glory be, a standard 24 x 36mm format (its predecessor the Nikon S was 24 x 34mm!). The Nikon S2 is a timeless minimalist classic, a shooter’s delight, and my personal favorite rangefinder Nikon, but it is technically and functionally not in the same league as the mighty Leica M3.

Canon VT manual page on using the parallax correction  accessory viewfinder system.jpg
Page from Canon VT Deluxe (VTD) manual showing how to the use shoe-based parallax compensation system with an accessory Zoomfinder.

Canon‘s initial “response” to the Leica M3 was, ironically, easing into production just as the Leica M3 was announced. The Canon IVSB2, unveiled in July 1954 and produced until July 1956, was, in the words of Canon guru Peter Dechert, “surely… the finest bottom- loading 35mm rangefinder camera anyone has ever built.” It had an improved shutter mechanism with slow speed dial split at 1/30 sec, modern geometric speed sequence (a feature not available on the original M3!), speeds to 1/1000 sec with X sync at about 1/45 sec, and provision for setting fast speeds with the shutter cocked or un-cocked. It also featured a larger eyepiece for Canon’s signature 3-mode finder, and provision for fitting a rapid wind baseplate. It took another year for Canon to offer the Canon VT, its first real competitor to the all-conquering Leica M3, and it incorporated one ingenious feature Leica never equaled.

Canon VTmanual illustration showing parallax-adjusting pin in hot shoe (callout number 26).(jpg.jpeg
Illustration from the Canon VT Deluxe (VTD) manual showing camera components. Parallax-adjusting pin in shoe is callout number 26.

The landmark Canon VT of April 1956 to February 1957 sure looks like a revolutionary design, but it’s essentially a Canon IVS2B with an enlarged, upgraded version of Canon’s signature 3-mode finder, a PC outlet in place if the funky side flash rail, a hinged back for easier loading, and a trigger wind baseplate. The click-stopped viewfinder lever can be set to provide a minified view or the 35mm field, a 0.7x view of the 50mm field, or a 150% view if the rangefinder for more accurate focusing. No bright frames or parallax correction were built in, but Canon devised a devilishly clever alternative that nether Leica nor Nikon ever offered, namely a small domed pin at the front of the accessory shoe that rises and falls as the lens is focused, thereby tilting any mounted Canon V-type accessory viewfinder to provide automatic parallax compensation. Wow! This automatic parallax-correcting viewfinder pin coupling remained a standard feature in all subsequent Canon rangefinder cameras, including the Canon L1, L2, VT DELUXE, DELUXE VTDZ, and VTDM, Canon VL and VL2, Canon VI-L and VI-T. It was deleted on the broad-spectrum Canon P (which had fixed reflected frame lines for 35mm, 50mm, and 100mm lenses) and the Canon 7, 7s, and 7sZ, all of which had user-selected projected parallax-compensating frame lines for 35mm, 50mm, 85/100 mm and 135mm focal lengths.

Canon Universal Zoomfinder S for l35-50mm lenses. An adapter (not shown) allows it to work wit...jpg
Canon Universal Zoomfinder S for 35-50mm lenses. An adapter (not shown) allows it to work with 21-28mm lenses.

Canion Lumi-Field 100mm accessory viewfinder.jpg
Canon Lumi-Field 100mm viewfinder had reflected bright line frame. These were produced in final lengths from 50mm to 135mm.

Canon offered an incredible range of shoe-mount accessory viewfinders for Canon rangefinder cameras—more than Nikon or even Leica. Single focal length versions from 21mm to 135mm with the right linkage for auto parallax compensation are generally available. Those with built in parallax adjusters, or predating Canon’s parallax compensating hot shoe can usually be made work with Canon’s tilting hot shoe when set to infinity. Canon also offered a variety of zoom finders covering lenses from 35-135mm, multi-lens shoe-mount turret-type viewfinders covering lenses from 35-135mm, and a remarkable Twin Turret Varifocal Viewfinder that covers focal lengths from 21mm to 135mm!

Canon Twin-Turret Varifocal  Viewfinder covers focal lengths from 21-135mm!.jpg
Canon's ingeniousd Twin-Turret Varifocal Viewfinder covers focal lengths from 21-135mm!

Accerssories page from Canon  VT manual showing Zoomfinder (available in long (L )and. short (...jpg
Accessories page from Canon VT Deluxe (VTD) manual shows Universal Zoom Finder that was available in S (short focal length range) and L (long focal length range) versions and individual Lumi-Field viewfinders that came in 50mm, 85mm, 100mm, and 135mm focal lengths

All provide auto parallax compensation with the previously mentioned shoe-mount finders when mounted on the crowning glory of Canon’s rangefinder cameras, those beginning with the Canon VT and concluding with the glorious Canon VI-T and VI-L both of which had top-mounted single shutter speed dials and bright parallax-compensating projected finder frame lines for 50mm and 100mm lenses. Incidentally, Canon also made a series of black viewfinders with the necessary linkage in 25, 28, 35, 50, 85, 100, and 135 focal lengths. The 50 and longer focal lengths had bright line frames. There were also two universal zoom finders, one for wide angles, the other for telephotos. While using any auxiliary viewfinder mean that viewing and focusing become separate operations, many photographers prefer the quality of the view through separate finders, which is often a tad brighter and clearer than what you see through the camera’s built-in finder. The choice is yours, but one thing is crystal clear: Canon’s brilliant automatic parallax-compensating, shoe-mount auxiliary finder system is the best one ever offered on any 35mm rangefinder camera..
 

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35 and 50 were (and are) widely-used focal lengths on 35mm RF cameras, so combining them let the photographer switch quickly without having to change (or carry) separate finders. As to “that's fine IF you are using a Canon finder”… uh, that was probably the whole point, dontcha think? Getting people who used accessory finders to use the Canon ones?
Today, 50-35 may be the preferred focal lengths for RF 35s, but in the 1950s, the most popular auxiliary focal lengths were 135 and 90. A preference easily confirmed by an examination of lens sales during that period. If the camera already has a 50mm VF built in and often a 35 as well, why bother with a finder of such limited coverage? Yes—with an adapter—the coverage could be extended out to wider focal lengths, but hardly convenient. The Nikon zoom finder with coverage from 135 to 35 was a lot more practical, was smaller and easier to use.
 
Try the late Black version of the 85/1.9, much lighter and a beautiful lens, as the 85/1.8 has become very $$$.
 
Today, 50-35 may be the preferred focal lengths for RF 35s, but in the 1950s, the most popular auxiliary focal lengths were 135 and 90. A preference easily confirmed by an examination of lens sales during that period. If the camera already has a 50mm VF built in and often a 35 as well, why bother with a finder of such limited coverage? Yes—with an adapter—the coverage could be extended out to wider focal lengths, but hardly convenient. The Nikon zoom finder with coverage from 135 to 35 was a lot more practical, was smaller and easier to use.
Presumably you've used all those options (as I have) so which provides the best viewing experience? The 35mm mode of Canon's built-in turret finder is small, blurry at the edges, and has no parallax compensation. Both the Nikon and Tewe zoom finders have similar viewing issues, and their parallax compensation is manual and dodgy. For Canon users who really cared about 35mm and 50mm viewing clarity and precision, Canon's finder was clearly (no pun intended) the best answer. Of course there never were a lot of those people, which is why this is a rare finder today.
 
You should get a Canon 85/1.8 (my favorite lens in this focal length, even more than the 85/2 Sonnar). It weighs 470 grams, as compared to the chrome 85/1.9 that weighs 565 to 604 grams depending on the version according to Peter K's book. I just weighed my Nikkor 85/2 for Contax, it is 496 grams. I have the Canon 85/1.9 and agree that it is a heavy beast!
Yes, my Canon 85mm f1.9 comes from Peter K’s collection and was purchased directly from him. I used it to shoot a rock concert in 2021, but it’s a heavy beast. Optically, I think I prefer the Nikkor-PC 85mm f2.0 lenses in either S-mount or Contax rangefinder mount. And these lenses, although heavy, are not as brick like as the Canon. I think I’m set for 85mm rangefinder lenses at the moment, but I appreciate your recommendation. Who knows what may come up!!
 
I'm looking for information about the Canon Lumi Finder 100mm (V type with parallax pin). I've just received a nice copy. I see that there are two sets of brighlines - a solid line rectangle and within that broken lines ( corners only). I'm wondering what the significance of these extra lines are given that the finder is one of the parallax correcting types. My guess is that they are for use at MFD . I can't see anything specific in the Canon literature I've found online.
 
I have the 135mm Canon finder. The inner set of lines would be for Field-of-View for the lens at minimum focus, the outer lines for infinity.
The finders are Parallax corrected. To indicate field-of-view for distance, a finder needs to have moving framelines. The Konica S2 and Polaroid Zeiss finders have viewfinders that are corrected for both Parallax and field-of-view. For example- the 90mm framelines on my Leica M9 are perfect for a Nikkor 10.5cm lens, just use the inner edge of the framelines at a distance > 6ft.
 
I bought on of those twin turret viewfinders recently. It was a lot brighter to look through than I had imagined it to be. I also didn’t realise that you needed an additional accessory lens for the accessory viewfinder to get the wider focal lengths. Seeing that it will probably be impossible to find the little lens I found a lens that seemed to work from my spare parts and 3D printed a mount for it to fitIMG_2794.jpeg
 
nhchen, I think that you did pretty well recreating the scarce finder attachment. This is the Canon version. I found it 15+ years ago on eBay in a "big box of camera junk". The finder attachment is about 32mm front to back and about 35mm across the front. I dont know for sure, but I am guessing the attachment has three lens elements, based on counting reflections when observed under a strong light source

 
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Thank you, Jason.
I briefly owned a Canon VI-L, and I traded it for a Standard Leica. Both cameras were special to me.
 
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