Question about Bronica SQ-A Medium Format Camera

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Shutter not Cocking?

So my Bronica SQ A has been working totally fine until just yesterday.

I was switching up lenses and now my shutter release won't cock. I crank it to frame 1 and the shutter release can be pushed in freely with my resistance... it doesn't fire the camera at all.

I tried a different back, and even loading a new roll of film and nothing seems to help.

If anyone has had this problem, please let me know how to fix it!

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I just got a Mamiya rb67 on ebay and I cannot get the cocking release lever to move or the shutter for that matter. I didn't want to force anything. I have looked at the manuals on the web, but cannot...

Have you tried it without the back attached, or without a dark slide in the back? Many cameras have an interlock preventing the shutter from firing while the slide is in. If that doesn't work, remove the lense and try it all over again - many times on these model's the problem lies in the lense, not in the body.

If neither works, consult a tech. But, expect more in repairs than you probably paid for the camera since these things are going for well under $300 these days.

Jul 26, 2011 | Mamiya RB67 Pro SD Medium Format Camera

1 Answer

Shutter will not cock

Hi there

I have researched your problem. I have located the online version of your camera and attached the link here:

It seems like the following cause might fit your symptom:

Is it possible that the small lever on the side might be set to multiple exposures. (See number 22 on the online manual that I sent the link for!)

Good Luck! and let us know how this works.

Jan 04, 2008 | Bronica SQ-Ai Medium Format Camera

1 Answer

I have a hasselblad 503cx. when i hit the shutter button, the back part of the lens opens (where the film is) but the lens shutter is closed. when i let go, the lens opens and the back closes.

The proper order of exposure should be:

Curtain opens/Lense stops down (unless wide open)
Lense shutter closes
When releasing button, curtain closes
When winding, lense shutter opens

If this isn't what's happening, something is wrong. There is only a simple mechanical screw connection between body and lense, so it'd have to be an issue with the gears in the body.

May 21, 2011 | Hasselblad 503CX Medium Format Camera

1 Answer

Just starting out with medium format. We bought a second hand Bronica SQ-A from a reputable dealer but the shutter will not **** in 'Normal' 'single exposure setting'. Cocks fine in Multi-exposure setting,...

Sounds like a problem with the single/multi "switch".
Film should not wind on in "multi" setting.
Back to the dealer - if he is reputable, he will get it fixed.

Dec 26, 2009 | Bronica SQ-A Medium Format Camera

3 Answers

Shutter stays closed on bronica 645 etr medium format

Have the electronic shutter checked by a repair shop. Sounds like your Seiko electronic shutter has died or there's a short somewhere between shutter and lens. Hope this helps.

Jan 15, 2009 | Bronica ETR-Si Medium Format Camera

1 Answer

50mm C lens issue

From your description, Yes. All RB67 lenses have common problems, usually sticky blades. Since there are 2 sets of blades, (shutter and aperture), the shutter blades may be contaminated with oil/debris

Apr 19, 2008 | Mamiya RB67 Pro SD Medium Format Camera

1 Answer

Loading film

After further investigation and because I can't keep my hands out of things I now know that the camera body is defective and that the shutter is jammed. It will only release with assistance. I was loading it correctly.

Apr 17, 2008 | Instant Cameras

1 Answer

Shutter release

Hi , to release the shutter open the lense and push shutter button , rotate the camera mode to auto or manual release shutter.donnot set on bulb or lower speed can cause stuck camera miror and stter curtain, or blade.

Feb 19, 2008 | Instant Cameras

1 Answer

Orange Warning Light

I recently had a similar problem and found the answer to be the shutter release on the lens itself.

When the using the shutter release, (mirror up feature), on the lens the shutter release, screw in portion, in the lens will actually will pop out to accomidate for the cable release.

There will be a small red circle around the base of the area where the cable release would screw into.

Try pushing that back in. Worked for me.

Good luck,


Oct 19, 2007 | Mamiya RZ67 ProII Medium Format Camera

1 Answer

Bronica SQ-Ai shutter problem

There could be a number of issues with this problem. Make sure the contacts at the rear of the lens and those on the body that connect with those on the lens are clean and straight. If so, the problem may be in the shutter within the lens. There is a magnet inside the shutter that sometimes becomes contaminated and fails to hold the shutter blades open for the selected shutter speed. The face of the magnet may need to be cleaned. There are also timing switches that sometimes go bad or need adjusting. These internal problems need to be taken care of by a competent technician since the lens needs to be completely disassembled. I have also seen these shutters go bad and need to be replaced. Let's hope that's not the problem because it will be difficult to get a new shutter for the lens--but not imposible. God luck.

Apr 30, 2007 | Bronica SQ-Ai Medium Format Camera

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