Flash sync for Packard shutter

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I've got a big ol' Packard shutter that I need to hook up the flash sync for. Does anyone know the workings of such an animal, and how to diagnose why it isn't tripping my flash when the shutter opens?

hi scott

i can't say why it isn't tripping your shutter, but
if hub photo is still in business, they might be able to help you out
they sell sync'd packards, and they might fix them too.
i say still in business, because i think ( i may be wrong ... ) they moved a while back ...

good luck!
john
 

Robb Scharetg

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Packard Shutter/Sync Questions

Hello

My advice (unless you do want to work on it yourself) is to contact Bill Moretz. He owns and runs a GREAT shop in Charlottesville, VA and can fix just about anything you send his way. He's done a ton of work for me and his workmanship is superb. Try the web: ProCamerava.com Tell him you heard about his shop via APUG.

Cheers

Robb Scharetg


I've got a big ol' Packard shutter that I need to hook up the flash sync for. Does anyone know the workings of such an animal, and how to diagnose why it isn't tripping my flash when the shutter opens?
 

PHOTOTONE

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I just installed one on a lensboard, and it works fine. Here is how it works, if it is a factory made flash sync model. Most all Packard shutters (and all with factory flash sync) have the little pin-hole in them that takes the in-out pin that is mounted on the front of the lensboard. The function of this pin is to switch the shutter from "bulb" to "instantaneous". With the pin out, the shutter will open when the air-bulb is squeezed.(pressure) It will close when the air bulb is released. (vacuum). No flash trigger on bulb.

When the pin is pushed in..the shutter will provide an instantaneous action, with the shutter opening and closing on one air-bulb squeeze. Shutter speed is between 1/20 and 1/125 depending on shutter size and pressure on the air-bulb when you squeeze it. When set to "instantaneous" the flash should trigger. If it does not, it is a simple matter to separate the halves of the shutter metal case (4 screws, sometimes 3 screws) and adjust the metal contacts of the flash trigger. How this works is very obvious when you take the shutter apart. The bottom line is that you have to have the "bulb-instantaneous" pin in "instantaneous" position for the shutter to trigger the flash. If your shutter didn't come with this pin (mounted to front of lensboard) you can make a makeshift one from a large paper-clip.
 

PHOTOTONE

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When you take the shutter apart to check the flash trigger contacts, you should note that the little phenolic "nub" on the metal piece of the shutter blades will not push on the contacts unless the "instantaneous" exposure pin is present. You can temporarily stick a paperclip thru the hole and observe this. The pin moves the metal shutter piece laterally (right) and the "nub" will make contact and push up on the trigger contacts, on "bulb" the nub will miss the contacts.
 
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