B is for bulb and requires you to keep holding the bulb to keep the shutter open; so when you release the pressure on the bulb, the shutter closes.
T is for Time, in which you fire the shutter and it stays open without any requirement to hold the bulb. When you are finished you generally move the aperture off the T setting and the shutter closes. Don't hold me to that as I don't have one of those shutters, but T stands for time when incorporated into shutter speed scales.
Go to https://1drv.ms/f/s!AggQfcczvHGN7QPLzcnfQqi0-7pf, get Pacemaker Instructions 1947.pdf
I love the extra machining that some of the old shutters had.
It looks like you also have a pair of Series VI to VII to 55mm adapter rings and filter. This is a useful accessory.
I think your shutter is not synchronized for flash, but other than that, you can read the section about the Flash Supermatic shutter in the manual that Dan linked, just disregard the parts about flash sync.
The "T" setting should open the shutter with one press of the release lever or cable release, and close it with the second.
I believe this shutter has a press focus button on the side. The operation of this is described in the manual, and I think with this shutter, you cock the shutter and fire it while holding the press focus button down, and it holds the blades open. Then you cock it again to close the blades. (The order of operations is different for different types of shutters).
You open the blades for focusing using either the T or B setting, or the press focus button. Compose, focus, deactivate the T or B if used to close the blades, then set speed and aperture, re-cock the shutter (closes the blades if using the press focus), double check blades are closed, insert film holder, withdraw dark slide, shoot, re-insert dark slide. Look at the checklists on largeformatphotography.info such as https://www.largeformatphotography.info/how-to-operate.html to understand that this is a terse description leaving out several steps.
The 'B' setting is an antiquated term from the days when shutters were actuated by an air bulb. When the shutter is set to B you hold the plunger of the cable release for the duration of the exposure time required, then let go of it and the shutter closes. The 'T' setting requires two actuations to use. You use this setting to compose and focus (if there is no preview function on the shutter). Set to T, trigger the shutter and it stays open for an indeterminate time, trigger it a second time and the shutter closes. Unless the shutter is self cocking, never change the speed with the shutter cocked, only change speeds before cocking the shutter.
Yes, all three are in the cult class, but I stuck to the N0.32 since that's what he has. I have a No. 33, which I hold in high esteem. In these modern time the No.31, 32 and 33 lenses are all overlooked since they almost always come barrel mounted.For me the No. 31, 32, and 33 hold cult status!
I have found that Kodak Supermatic shutters are as good as any if handled properly and fairly easy to demo a CLA to if need be.
as for the No.32 lens? It's a first rate piece of optical glass that in years past had kind of a cult following. If you don't get excellent results from your setup it won't be the fault of your equipment. Have fun with it and enjoy what you have.
Alex,
Other than a weak main spring or gummy slow speed train the Supermatic is pretty trouble free and fairly easy to work on. I don't have a video or diagram of "How to repair a Supermatic shutter", but I can tell you where I would start. I always go the easy, less evasive route when it comes to trying to fix something.
Here's how I would tackle the problem. First, I would go to my local hardware and buy a pint or so of Naphtha. Then I'd go to your local Farm & Family or Tractor Supply and buy some 10ml syringes. Also, buy a couple of cans of dust off (compressed air). Now you should be all set to tackle the shutter.
Unscrew both the front lens group and the rear lens group so all you have is the bare shutter with no glass. Take your syringe and fill it with Naphtha and squirt it onto the shutter blades , in the cable release socket and any opening on the edge of the shutter body itself. This is called flooding the shutter. Now blow out all the areas you shot Naphtha in and your shutter blades also. Now you want to cock and release the shutter at all speeds. If the shutter hangs up don't force it through its cycle. Just flush it again and blow it out. You might have to do this several times, but eventually it will be cleaned of dirt and gummed lubricate. I run my shutters dry with no lube, but if the slow speeds are still sticky after flushing I will usually pull the faceplate off the shutter and use watch makers oil on the slow speed train gears, but from what you describe your shutter doesn't seem to have a sticky slow speed problem. Oh, after I do this cleaning I usually leave the shutter set in the full sun for a few hours to evaporate all the remaining Naphtha.
Give it a try since you have nothing to lose and there will be no damage done. One word of caution and that is that some shutter blades are made of a fiber material and will swell when hit with Naphtha, but not your Supermatic shutter so no need to worry.
Good luck!
Alex, John has given some reasonable advice bur note that while some success may be achieved by flooding a closed shutter there is the risk that the old lube will get melted by solvent and redistributed. That’s not good for long-term solution. It’s much better to open the front of the shutter, remove the speed ring and flood such that the solvent washes the innards and flows out… until it the solvent looks pristine clean. Then you can very carefully oil to front side with the slightest amount of watch oil and lightly grease the speed ring. That’s really only half of a full service but most likely god enough.
Do yourself a favor and spend a dollar, or less, on this:
Alex,
Brian gives you good advice about getting the repair manual. I have done it the way Brian suggests, but usually try the way I described first. If that doesn't work, I go further into it. When I flush, I stand/hold the shutter on edge, so everything flows down and out. The more you flood, the cleaner it will get. If you have white paper towels under the shutter, you will see particles of dirt and gunk on the towel. Is this a proper CLA? No, but it's always where I start first. KISS!
Nice work. I once completely took apart the Graflex shutter on a little 127mm Ektar. Needless to say, it's still in pieces. I applaud you for jumping right into a repair/maintenance session as new large format shooter. Now get out there and use up some film!
Alex,
Nice job and doesn't it feel great saving a life. You can do as you wish when it comes to the self-timer, but if I have a shutter lever and a cable release socket on a shutter I would never waste my time messing with the self-timer. Many times the self-timer is the achilles heel of a camera or shutter. If you jam a self-timer most shutters stop working after the jam. Actually, it's what I would call "more trouble than it's worth".
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