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Canon EF-M - A manual focus camera that takes only Canon EOS EF lenses

JDM von Weinberg , Feb 08, 2012; 04:07 p.m.

Canon EF-M
A manual focus camera that takes only Canon EOS EF lenses

This one could fit into "Modern Film Cameras" except that it is completely manual focus, even though its lenses are AF lenses. I think it really belongs here in Classic Manual Cameras on that account. This is the camera so many here have asked for, but never bought when it was available.



"If you build it, he will come." so sayeth the Field of Dreams (1989) ( http://www.imdb.com/title/tt0097351/ ). Every six months or so, somebody posts here ( more frequently by far if other photography websites are included) a plea for a major modern camera maker to produce a camera without all the bells and whistles, so that those sanctified people who shoot manual-only could buy a camera without having to pay for the extras.

Canon must have been listening. They actually built it -- "it" being essentially a 1989 Rebel/EOS 1000 with no flash (only a hot shoe) and with the AF circuits absent or perhaps only disconnected.
A few other features, in addition to the AF, are also found on the Rebel camera are omitted on the EF-M, including a built-in flash.


The Canon EF-M was released to the non-Japanese world in September, 1991, shortly before the collapse of the Soviet Union, a subsequent event that seems largely unrelated. I do know that many here like to see connections, however, post hoc ergo propter hoc. ;)

Note: the camera is NOT an "EOS EF-M" because it does not use the EOS (Electro-Optical System) AF, merely the EF mount. It is just plain old Canon EF-M -- the only one of its kind, the Uncas of Canon non-autofocus EF mount cameras.


There is less general information on this camera than one might expect, but this may reflect its unsuccessful market career. Wikipedia's article is at http://en.wikipedia.org/wiki/Canon_EF-M and is little more than a 'stub'. The Canon on-line Museum has merely the specifications as noted. The inimitable Butkus (may his line be prosperous) has a manual for the camera. NK Guy at http://photonotes.org/manuals/ef-m/ has written his own "unofficial" manual which gives some additional information about the camera and some of his speculations.


Canon EF-M

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JDM von Weinberg , Feb 08, 2012; 04:10 p.m.

But where were all the people who said they'd wanted it? Apparently in one of those alternate universes, very likely, where the Edsel is Ford's leading line of cars.

I have no ads for the camera and I do not know the original price, even in yen, since this camera was never sold in Japan so the Canon Camera Museum ( (link) ) lists no price. Presumably it was cheaper than the Rebel, but of course the AF circuitry in such a camera is not expensive, once its mass manufacturing costs are 'amortized'. "Take control" was the motto. Apparently not all that many people wanted THAT much control. One post indicates that one Japanese shop re-imported it and offered it for 18,000 yen for body only ( http://www.ne.jp/asahi/japan/manual-camera/efm1.htm ). The price in Japan for the Canon EOS 1000 was much higher than that ar 47,000 yen for body only ( (link) ). I found one new in box example offered on eBay at around US$100, but I bought a used one for about $30. It did turn out to have a partially flawed viewfinder information panel, but it is still usable and for the price, I'm not complaining. It often sells used for around $90, but my $30 price is not uncommon for those with patience.

The Rebel/1000 price at its introduction in Japan was 69,000 yen with EF 35-80mm f/4-5.6. The 'normal' lens for the EF-M was listed as the EF 50mm f/1.8, but the manual shows the same 35-80mm zoom in many examples. Needless to say, one EF lens that will not work with the EF-M is the original Power Zoom 35-85mm which lacks a focus ring altogether!


Canon at the link above gives the specifications:

The fixed, pentaprism viewfinder has a magnification of 0.75x (50mm at infinity) and 90% coverage. The matte focusing screen has a combination rangefinder. The 7-segment LCD within the image area displays numerals and text for the shutter speed, aperture setting, incorrect exposures, exposure level, film speed, AE lock, and flash ready.

Three-zone evaluative metering. partial metering at center, and center-weighted averaging metering are also provided.

JDM von Weinberg , Feb 08, 2012; 04:11 p.m.


Type 35mm focal-plane shutter SLR camera

Picture Size 24 x 36 mm

Normal Lens EF 50mm f/1.8

Lens Mount EF mount

Shutter Vertical-travel, focal-plane electronic shutter. 2 sec. - 1/1000 sec., B. X-sync at 1/90 sec. (hot shoe). Built-in electronic self-timer (with beeper).

Viewfinder Fixed eye-level pentaprism. 0.75x magnification and 90% coverage. Microprism/split-image combination rangefinder with New Laser Matte screen.

Viewfinder Information Seven-segment LED displays numeric values and text. Shutter speed, aperture setting, incorrect exposure warning, exposure level, film speed, AE lock, flash ready, and other indications.

Metering & Exposure Control Composite SPC for TTL full-aperture metering (3-zone evaluative, 9.5% partial at center, centerweighted averaging) with shutter speed-prority AE, aperture-priority AE, Intelligent program AE, and metered manual. Metering range at ISO 100 and f/1.4: EV 2 - 20. Film speed range: ISO 6 to 6400 (settable manually in 1/3-stop increments).

Power Source One 6 V 2CR5 lithium battery

Film Loading & Advance Align film leader at mark, then close the camera back for prewind loading. First, the entire roll is wound on the take-up spool. Then each time a picture is taken, the film advances back into the cartridge. Film transport with the built-in motor. Film advance speed: 1 fps.

Film Rewind After the last frame is exposed, the film is rewound automatically.

Dimensions & Weight 148 x 97 x 68 mm, 390 g

JDM von Weinberg , Feb 08, 2012; 04:12 p.m.

The Canon EF mount has the electrical contacts to the lens, but these control only the aperture set on the lens, since focus is completely manual. It is essential, of course, to turn off AF on lenses without full-time manual focusing capabilities.


Canon 5D contacts left - Canon EF-M right

JDM von Weinberg , Feb 08, 2012; 04:14 p.m.

By the way, note that the mount is another of those PLASTIC mounts like the EOS 700. ;)

Despite its intentionally basic form, this was actually quite sophisticated. As is the case with most of the EOS film cameras, L on the aperture dial is "off". If the shutter speed dial AND the shutter aperture dial are both set to "A", then the camera operates as a program-exposure camera with both the speed and aperture being selected automatically. If, however, a specific shutter speed or aperture is chosen on the appropriate dial, then the camera operates as a shutter-preferred or aperture-preferred camera.
If both dials are turned to settings, the camera is totally manually and exposure is chosen by turning one or both dials and noting the under- or over-exposure on the display in the viewfinder. Exposure compensation has its own control, together with buttons on the back that otherwise are exposure-lock and self timer controls.


Top of the EF-M

JDM von Weinberg , Feb 08, 2012; 04:16 p.m.

One feature of the Canon EF-M is more-or-less unique, however. It has a special viewfinder screen that is designed for MANUAL focus with EF lenses. This consists of a fairly bright ground glass, with a central micro-prism ring and, within that, a prism rangefinder. Many people seem to have found this a source for a finder that could, with some difficulty, be installed in other EOS cameras, film and digital. It's my impression that it is actually superior to the MF screens offered by Canon today for some of their digital cameras. In any case, broken or not EF-M cameras have been plundered to get this screen - perhaps another reason for it's maintaining value pretty well, both in terms of utility of the screen and destruction of the relatively few of them that are out there.


EF-M finder (rangefinder prism 'enhanced')

JDM von Weinberg , Feb 08, 2012; 04:17 p.m.

Of course, I suppose the only mystery about this camera so far as this report is concerned is how well it works with my variously reworked eyes, mark ii. Does the manual focus work, in other words?
Yeah, I guess so. It seemed easy to focus. Of course, it is absolutely crucial that you remember to turn off the AF on the lens if it is not one of the newer USM series. Otherwise, you may experience what is known as the dread AF "crunch" as you destroy the AF mechanism in the lens.

Here are a few examples. These are all shot with a Canon EF 35mm f/2 lens in manual mode. I thought about using my Canon EF 24-105mm lens, but to be honest putting a 670g lens on a 390g camera body doesn't balance out all that well. :)

The film was Walgreen's version of Fuji 200 C/N film. These are "un-shopped" except for adjustment of the scans for exposure and 'spotting' some of the inevitable film 'spots.' Exposure adjustment and some color adjustment is necessary because of the scanning process and settings. The negatives were of good, on-the-dot density.


One of our links to the outside world

JDM von Weinberg , Feb 08, 2012; 04:19 p.m.

By the way the first pictures here were Tv, Av, and M (to put it in current terms), but the later images were program.


A sculpture by Christiane Martens

JDM von Weinberg , Feb 08, 2012; 04:19 p.m.

The winter has been so mild, and so warm recently that many trees are starting to bud. They will be punished, I'm afraid.


The building the background was a once-state-of-the-art lecture hall with a central core for projecting slides and multimedia. It has been upgraded

JDM von Weinberg , Feb 08, 2012; 04:20 p.m.

The library has also moved to completely electronic access, which is even more fortunate for those of us who work from home (retired :).


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