Mamiya Six Automat I

Mamiya 6 Automat with Olympus D.Zuiko Lens

The Mamiya Six Automat is yet another addition to my medium format camera collection that I acquired in March 2017. A collection largely funded by my desire to not just break down and spend more than $1000 on some gear that I know is really nice. (Looking at you modern, interchangeable lens Mamiya 6)

The first medium format camera I ever owned was a Kodak Tourist II 6x9 folding camera. I only ran a handful of film through it before I stopped using it. I haven't had a folding camera since (if you don't count a baby Speed Graphic), but always have kind of wanted one. Still not wanting to spend $1800 for a Fuji GF670, I did some research on the vintage folding cameras and settled on the Mamiya Six Automat.

Strap Lugs

The Mamiya Six does not have any strap lugs on the body. Something I overlooked when I bought a camera without a case. Thus, I've been operating strapless for now. With the lens out, I'm not actually finding a good way to hold the camera in one hand while walking around. Might need to pick up one of Gordy's tripod wrist straps, or commission a custom half case if I can't turn up a vintage case to fit the camera. The neat part about not having the extra leather case on the camera though it that it even more easily fits in my coat pockets.

Also, I have already dropped it on my foot when I wasn't wearing shoes. I don't recommend doing that. It hurts like hell, and then your toe swells up and turns black and blue.

A Rangefinder!

I didn't like the Kodak Tourist II very much since there was no rangefinder in it. One of the big selling points on the Mamiya Six Automat is that it has a coupled rangefinder. The rangefinder itself turns out to be pretty decent as well. I'd say the rangefinder spot itself is compatible to the spot in the two Fuji GW690/GSW690 cameras that I have owned.

The neat thing about the focusing mechanism in the Automat is that instead of the lens moving back and forth, the focal plane and film move instead. I guess this makes it more reliable over time due to less complexity with moving the lens and having it fold into the body. The film plane focus also allows you to focus the camera while the lens in still in the body. Not sure what use that would be, but you can do it! Maybe if you wanted to clandestinely prefocus on something before you open the lens and strike later?


Like all cameras of this age, the bellows are always a point of worry. The initial tests I did by popping a flash into them looked good. No pinholes! Ran a roll of film through the camera and it showed signs of light leaks. Tested it again and low and behold, a large pinhole had appeared. Instead of the typical acrylic paint/Elmer's glue mix that I've used in the past to repair bellows, I gave Liquid Electrical Tape a try. The initial application was promising. I let it set up and tested for leaks and found none. I opened and closed the camera a few times and checked again. Even more pinholes than when I started! I applied a second coat of the stuff and repeated this same cycle a few more times until I no longer had pinholes after opening and closing the camera few times.

Satisfied that I finally applied enough coats I let it cure for the recommended 24 hours. Then I closed up the camera and threw it into my bag as I went to work. After the work day, I opened the camera, and the liquid electrical tape had fused to itself, and it did a real number on the bellows as it peeled apart during the opening process.

Mamiya 6 Automat - Broken Bellows

I claimed defeat and sent to the camera to Jurgen at to get a new set of bellows installed. Patching is fine in a pinch when it works, but for old bellows near the end of their life, it always leaves that sense of dread not knowing when another one will appear. So I'm happy to pay the premium not to have to worry about when new holes will appear.

The camera came back with some sexy new bellows. Though there initially were some light leaks due to glue on some of the corners connecting to the body coming undone.

The Autococking Shutter

So the auto in automat apparently originates from a mechanism on the camera that automatically cocks the shutter as the user advances the film between exposures. This a neat feature that many medium format cameras lack. The problem with my particular automat though, was that for about two or three exposures per roll, something in the timing mechanisms would get our of whack. This glitch results in the cocking arm not returning to its resting position which would cause the shutter to either not be able to be fired. Or even worse, not let the shutter close after it opens.

When I noticed that this happened, it was easy enough to work around by starting to close the lens into the body. That motion would break the connection between the shutter cocking arm and the body. Then it could be moved out of that way and fired as normal. But then the camera goes back to needing to be manually cocked between exposures until the lens if fully closed and reopened.

On a lark one night I took the top and bottom base plates off the camera and just watched everything move as I dry fired the camera over and over. Eventually, I noticed a little tab on a gear on the bottom of the camera that was associated with where the shutter cocking arm stopped.

This tab (Figure A) is supposed to connect with an arm that is connected to the shutter release button to stop the cocking arm from moving anymore after it did its job. However the arm wasn't fully resetting in my camera, so it wasn't stopping the tab every time.

Shutter Cocker Stopper
Figure A
Where the gunk was
Figure B

First, there was a lot of gunk built up around the pin that connects the shutter button and the arm that stops to the shutter cocker. (Figure B) I swabbed all this off with a q-tip dipped in rubbing alcohol to get the gunk off to let the arm and pin slide against each other cleanly.

Secondly, The shutter release button was twisted weird so that it was getting caught under the disc that shows how many meters the rangefinder is focused on. (Figure C) I suspect that due to this, the shutter was not able to fully reset, which cascaded down to the arm at the bottom of the camera not being able to connect with the shutter cocker stopper tab.

Shutter Conflict
Figure C

I simulated exposing about twelve rolls of film after making these adjustments, and the timing on the shutter cocking mechanism hasn't failed once. I hope that means I got it! ::knocks on wood::

Loading The Camera

I feel like every time I get a new medium format camera I end up goofing up the loading of the first roll of film somehow and ruining it. So for the Mamiya Six, I made a little video showing how to load it.

Two points of interest about loading and unloading the Mamiya Six. First, I find that when aligning up the start arrows with the start mark tends to put the film close to the lead edge of the film. If you are processing your film at home, this isn't an issue. However, I take my film to a lab for development and have found that the beginning of the film that always gets exposed when they load it into the machine creeps into the first frame. So, you may want to give the film an additional crank or two if you intend to have a lab do your processing.

Second, with the lick and stick seal that Kodak uses for their current 120 films, it sometimes seems to get hung up in the camera when winding up the rest of the roll. Sometimes attempting to advance the film will cause it to tear off, sometimes I won't. Small panic inducing feeling the first time it happens, but it doesn't seem to fog the film if you need to open the camera up to free the stuck film.

Removing The Top Plate

If you want to get into the camera to clean the viewfinder, or for other devious reasons, here is a video I made showing to remove the camera's top plate.