Canon AV1

I now have a Canon AV1 with a shutter problem. Can I fix it? I’ll have a good go…

What the listing stated:

This camera is in very good overall condition. Some light signs of use but this is generally minor. The light meter is responsive when you press the shutter button down. However, the shutter will not fire. Spares or repairs only.

EBay

I’ve just paid £8:98GBP for this camera, and I believe this is a great price for a piece of camera history. The AV was introduced due to there being a demand for aperture priority at the time, whereas its Sibling, the AE1 was purely shutter priority. Later cameras would come to incorporate both systems. This one has a known problem with a stuck mirror – it won’t fire and I think I can easily sort this problem. Well I hope I can.

Here’s a little information about this camera:

The Canon AV-1 is a 35 mm single-lens reflex camera with an FD lens mount, introduced by Canon Inc. in 1979.

The AV-1 is very similar to the 1976 AE-1 but provides aperture priority autoexposure rather than the AE-1’s shutter speed priority AE. The camera is not capable of fully manual exposure. Canon’s international distributors, particularly in the United States, had clamored for such a camera because competing brands offered mostly aperture-priority cameras and some preferred it. The AV in the name referred to the type of autoexposure; Av (Aperture Value) is a common abbreviation for aperture priority.

When this camera appeared, a new range of FD lenses was introduced, with instant mounting/unmounting of the lens. This is called the New FD mount and does away with the older type of mounting ring which was fitted on to the rear of the lens and was awkward to use and needed two hands, to a newer, easier system whereby the user lined up the red dot on the lens, with the red dot on the camera and simply turned the whole lens clockwise until it clicked into place.

All the other AE-1 accessories fit the AV-1.

Wikipedia

I’ve decided to collect all of the Canon “A”Series of cameras, and this adds to my current collection that consists of an A1 and an AE1. There were I believe, six cameras in this range and this current camera will be my fourth. Here’s a list of the “A” range of cameras below. I have highlighted with an asterisk all that I currently have at the date of this blog post being published:

Assessment:

The original listing description does not match the issues that I have found. It originally stated that the light meter is responsive, it isn’t. It also stated that the shutter does not fire, it does when a battery is installed. The battery level indicator in the viewfinder does work when the check button on the camera is depressed. However when you focus the camera and half depress the exposure button to get a meter reading, the needle in the viewfinder doesn’t respond, this is the only real issue I can see, I guess the seller must have been looking at another camera as he wrote the listing for this camera.

Battery level reading in the viewfinder

All settings appear to be working as they should, the “B”setting allows me to scroll through the “f” stop settings to see the aperture leaves working as they should. All “f” stop settings appear to work on the auto setting.

It’s a smart little camera, this a tidy example of this version with no dents, dinks and just some very fine scrapes on the base as you’d expect from a camera fast approaching 46 years old (1979-2025). It’s a bit dirty and needs a good clean inside and out, the light seals are in a good state and not requiring replacement or repair just yet, however the mirror bumper has deteriorated and this will need replacement.

Mirror bumper needs replacement

The shutter curtain is in a good and untouched condition.

I’m going to research issues with the exposure indication, and I will incorporate my findings within the repair section.

Repair:

I thought, perhaps the camera is suffering from lack of use? It certainly is probably some considerable time since this camera was last used. Firstly I’ll try exercising all the controls that affect the exposure reading, including the mode dial, film speed dial, aperture ring, etc. I’ll work them backwards and forwards a few times to see if this helps to clean the variable resistor tracks inside from any surface contamination. When the FD lens is attached you must be mindful that the “A” setting on the lens is not used and that the f stop settings are used in a manual manner, lens auto is not a function on this camera.

To be honest, this did seem to work sort of. The needle has moved off the bottom a bit. The ASA setting was on 100, so I put it up to 1600 as it is quite a dark day and the sensitivity of the light sensor would be reflected better at this setting. It moved a bit but I wasn’t totally convinced that this indication in the viewfinder reflected the true light situation.

I set a higher ASA for testing

There’s also a small, silver push-button just inside the lens mount at about the 4-5 o’clock position. If you press this in and release it a few times for the same reason, as exercising the dials as I did above, it is just like exercising a body part and keeping it supple. Leave items like this, designed for high usage redundant for a while and they soon seize up. it has also been known to assist with getting the needle indication working after a long lay off.

That silver button, highlighted

(A little bit of trivia here – this button is normally used for the lens to inform the body of the lens’s maximum aperture. This information isn’t needed on the AV-1, but Canon included it anyway for some reason, and it does affect the exposure.)

And combining these actions, moving the settings dial and the button inside the lens mount seems to have revitalised the light meter and I’m now quite confident that it is working as intended. It was just lazy due to low use and needed a bit of non invasive intervention to get it working again. And non invasive intervention is always a good thing. So with the setting back to 200ASA I was able to show the meter working in this very short and basic video below.

A brief video showing the meter needle moving

I’m confident that the metering issue is now sorted so let’s get that new mirror damper installed.

A lot of dirt came off of the area where the replacement damper had to go, it had completely deteriorated and took quite a bit of cleaning.

Now in place it has silenced the mirror movement somewhat, and will provide some longevity as it moves into the twilight of its years. It will be good for many more rolls of film yet. Whilst in the lens area I have cleaned the mirror and prism, and given the area a good blow through and put the lens back in place to seal it all up. It is now clean internally. I have a couple of body caps on order that will assist with storage when the lens is removed.

Just a final clean with some cockpit cleaner, and this camera has come up lovely, I’ve tested it on a Power winder “A” as well and it sounds just so good and “retro”. It’s perfect.

Result:

Well. I now have another lovely example of one of the Canon “A” range of cameras to add to my collection. This brings my current total to four out of the six available, two of which are still currently under repair. For less than £10:00GBP it is so easy to own a piece of photographic history. I have been lucky here that the work that had to be done was non intrusive, and to be quite honest was just basic everyday maintenance. The only real work of sorts was installing some mirror damper felt, of which I have plenty of stock. Cleaning was quite intensive but the overall result is amazing.

I will eventually run a roll of film through for a final quality check, however I have such a backlog it will take me a while. When I do however run that test roll I will post a link here:

Really pleased with this repair, and the fact that another lovely old camera has been saved from the scrap heap and been given a new lease of life.

Thanks as always for passing by. It is as always, very much appreciated.

Ensign Ful-Vue II

I’ve had this camera sitting around since March 2023, when I first wrote about its purchase along with a couple of other cameras here: New old stock 📸

Barnet Ensign Ful-Vue II

I’m not sure what I paid for these cameras but it wouldn’t have been a great deal. I love the Ful-Vue due to its looks and the kind of Art Nouveau feel it has about it. It’s a very basic mass produced camera of its time and It is an old 120 film camera, and the bonus is that this film type is still readily available, in fact I still have a few rolls in my fridge at home today.

The shutter is an all mechanical, spring loaded system which swings a piece of metal over a hole to create the exposure. The approximate timing is 1/30th of a second and that’s slow. It is understandable when taking in to account that ISO 400 wasn’t that common in the 50s and would have produced very noisy results. It was far more common to use ISO 50-100 film and that would’ve required a slower shutter speed at the approximate f11 of the lens of this unit.

I obviously want to get it back into full working order. And want to do as sympathetic a restoration as possible. It’s a 120 roll film camera with a 6cm x 6cm frame inside, it was a cheap and cheerful camera of its day, sold as, “Easy, even for a child to use.”

In the meantime, here’s some history about this little camera:


Barnet Ensign Ross Ful-Vue II

Originally released in its initial form in 1939, this version was introduced in 1950 after further improvements were made. The new flash synchronised shutter, the turn-able lens barrel allowing three different distance settings instead of two, an all-plastic front panel, and an optional flashgun. The improved version was called Ful-Vue II. Pictures were 6×6cm on 120 film. It has been stated that colored models (red, white and blue) were sold in 1952-3, to celebrate the coronation of Queen Elizabeth II; However, no other evidence for these cameras has been seen: in particular, the Ful-Vue is not mentioned in a coronation advertising supplement to the BJP Almanac of 1953. Colored Ful-Vues were advertised as ‘Ful-Vue à la Mode’ in late 1952. Examples of the regular Ful-Vue II, repainted and presented as the colored model, have been seen in online auctions.

Camera wiki.org

So I estimate this camera to have been produced sometime between 1950-54 when this particular model had its production run, just prior to yet another version becoming available. Making this particular camera approx 70+ years old. Let’s have a look at the unit that I am now in possession of.

Assessment:

The case is leather and is very dry and brittle, it’s complete, so I may well look at revitalising this one just as I did to an old Kodak camera in this old post: Kodak Brownie reflex. If I do, I will cover its repair in the following section.

The camera itself is in quite a good condition cosmetically, it has chips off the paint and a little wear and tear that will require some attention. There appears to be a screw missing on the front plate, this will be replaced.

The mirror inside the viewfinder seems to have moved and will need reseating, all glass and mirrors appear quite foggy and need a good clean, all workings within the camera inside appear ok. Light seals appear ok but may well need replacing purely due to their age.

The lens barrel and shutter mechanism will be checked over to check correct operation, however at first glance, all seems to be ok. There is a little red window on the rear panel where you can see the film exposure numbers. A little thumbscrew can be turned to blacken this window out, this will be very handy for when we try to install a colour film to prevent any fogging issues.

Repair:

I want this to be a sympathetic restoration, so I will endeavour to keep the look and feel of the unit as original as possible.

The case:

I’m starting with the case as this is probably going to be the most time consuming and will require numerous periods of drying and moisturising, it’s probably about 70 years old now and to be honest has probably had no care taken of it during that time.

Using some mild detergent, but just the soap suds on a cotton pad I have gently wiped all over the case, paying special attention to any old folds in the material. This has had a dual purpose of removing ing a lot of age related dirt (As you can see in the photos above, that show the dirty cotton pads) as well as adding a little bit of moisture but not too much. I want to do this in stages to minimise any more damage. I will now let this dry for 24 hrs and I will then do the same again.

24hrs later I have cleaned the case again, in exactly the same manner. let’s leave it another 24hrs and then apply a little polish to give it back some colour and a little bit more moisture. I’m keeping it as low cost as I can, no doubt a brown shoe polish will suffice for the result I’m looking for.

I’ve treated the leather and polished it twice using a black shoe polish. The third coat I have given is a tan regimental high gloss polish. I’m leaving this for a few hours and then I will buff the case up. I’m not repairing stitching or holes as I want it to retain age and it’s old look. I just want the leather to look healthier, last a while longer and to get some moisture back into what was a very brittle leather case.

I have today buffed the case up after all the treatments of the last couple of days. The case feels lovely and soft and much more pliable than when I first started on it. I’m now going to bring this part of the repair to an end as that’s as far as I wish to take it at this time. I want it to still carry its signs of age. Without further a do, let’s move on to the camera.

The camera:

I have decided to totally dismantle the camera and work on it bit by bit. In this case there is not a great deal to dismantle.

Firstly I release a retaining clip inside of the main body and this releases the “Viewing head” on top of the camera. This part of the camera contains the mirror that has become detached, and two glass optics that complete the viewer section of the camera. There is a single spring structure that holds both pieces of glass in place, release this and they just fall out. Easy.

I’ve started by placing the three optical items above in a mild warm detergent soak. I will leave these there for about an hour, in hope that a soak will help in cleaning that muck off the back of the mirror. The two other optics are in great condition and I’m sure the soak and then a final rinse will be all that they require. This treatment worked just fine, and now onto the next part.

Next I’ve removed the shutter mechanism from the camera body.

Here is a very small video showing the simplicity of this shutter mechanism

A The mechanism is beautifully simple and is such a lovely piece of work to look at. To think im probably the first person to look in here in the last 70 years is special. All I’m going to do here is very carefully get rid of as much old ingrained dirt as possible and very gently clean the shutter leaf. I will use a minuscule amount of clock oil on the mechanism only, I will use some fine graphite dust on the actual leaf part of the shutter.

The lens and mechanism have been cleaned now and reassembled, all tested, and working as expected.

The body work is fine apart from some small chips and paint flakiness. I’m going to retouch these missing areas with some enamel paint and a bit of thickener to enable me to obtain the stipple effect of the original paint job. Then I will finish with a nice black polish.

Let’s now get the mirror back in place and the head back on the camera unit.

And that’s it. Apart from a little polish we are now done here

Before and after

Result:

I’ve put quite a bit of work into this little camera. Some people will ask why bother as it was only a cheap mass produced camera? Well, I like it, it’s a lovely little camera and it deserves to be displayed. Now, as it’s also working it’s a big bonus. It gives me something to do, and it’s how I relax, as I’ve been shoulders deep in DIY at home recently and doing my shifts at work, so this is a welcome distraction for me.

So that’s another one saved from scrap. This camera will now go into storage where I will vacuum pack it with some silica packets to prevent it from getting damp. I’m surprised just how good this camera “smells” considering its age, there is no mustiness at all compared to some cameras I get from this era.

Many thanks for popping by, you know it is always very much appreciated.

Have a super day.