Huge Lens Shutter & Adaptors

[Drew Bedo]

Ran across this the other day . . .looks interesting.

Has anyone ever seen one of these? It seems to be an air pressure regulator for controlling the effective speed of s Pakard-Ideal type of pneumatic shutter.

https://www.ebay.com/itm/20338873155...Cclp%3A2334524

[mhayashi]

Drew, I can’t see the link.
Are you talking about the electrical shutter?

https://packardshutter.com/

[Tin Can]

Looks very good to me

Well done all parts!

Tin Can, here is my solution for my arca. It wasn’t the best solution being mounting the shutter behind the lens.
The arca bellows are simply too small for 5’ hole packard shutter.

The machine work is done by Gidou-san of Toyo Camera Service in Tokyo.

Here are the samples of attaching a 5 inch hole packard shutter of Packard-Ideal Shutter Company to Dallmeyer 3A and Graf variable 14’-16’.

I wanted the packard shutter attachment system to be versatile to most of the large diameter lenses.

The system can use Lee filter SW150 system. I need a lens hood for this system now.

I bought 1, 2, and 3 prime numbered ND filters so I can use 1 ND filter or combine 2 of the 3 ND filters to reduce lights down from 1 to 5 stops depending on the ambient light intensity. The instantaneous mode speed of the 5’ hole packard shutter is 1/10 to 1/8. I use ISO 50 and ISO
100 color transparency films currently.
Attachment 215319
Attachment 215320
Attachment 215321
Attachment 215322

[Drew Bedo]

Drew, I can’t see the link.
Are you talking about the electrical shutter?

https://packardshutter.com/

Does this one work?

https://www.ebay.com/itm/20338873155...Cclp%3A2334524

[mhayashi]

Interesting gizmo!
I looked up what it is.

Here is a pamphlet Jon Wilson posted.
https://www.largeformatphotography.i...8&d=1521082075
in the thread here.
https://www.largeformatphotography.i...hutter-release

Apparently the camera coupling part is missing in the *bay.

[mhayashi]

Thank you Tin Can!
I will ask Jon Gilchrist whether the
air pressure cylinder can offset to the edge next time,
since the filter holder is a bit off from the center of the hole.

[Tin Can]

Reading the Advertising copy reveals several historical ways to use a Packard with a hand operated rubber air bulb

I infer some used to put the bulb on a hard surface and punch it for maximum air pressure, perhaps giving a shutter speed increase

But how much?

I have about 10 Packard shutters, observing the bigger the ID the slower they cycle

I have NOT studied the actual speeds for years, I used to check with an iPhone Optical trigger, at that time my good hand was very weak and I had a tough time obtaining reliable open close cycles, Jim Galli gave me useful advice

My hands are much better now

I primarily operate Packards with strobes or flashbulbs, either OE installed or DIY switch Mini Micro Switch

Flash will make all Packard shutter speeds reliable

Whenever I use a Packard I test fire it several times, before the money shot

My goal both with and without added light is simply get a reliable single shutter speed

Yes, 'Bulb' is also great for long exposures

Interesting gizmo!
I looked up what it is.

Here is a pamphlet Jon Wilson posted.
https://www.largeformatphotography.i...8&d=1521082075
in the thread here.
https://www.largeformatphotography.i...hutter-release

Apparently the camera coupling part is missing in the *bay.

[John Earley]

On another note, getting the proper rubber tubing and rubber bulb is somewhat important to the correct operation of a Packard shutter. A bulb that is too stiff or too flimsy won't be very reliable. Stiff tubing is annoying to use and tubing that is too flimsy can expand instead of the air forcing the piston to move.


Calumet C1 8x10 View Camera with R. Knoll Doppel-Rigonar 360mm f5.5 and Packard Shutter mounted to lens board by JOHN EARLEY, on Flickr


Ansco 8x10 with 14" Veritar f6 lens on shop made lens board and camera mounted Packard shutter by JOHN EARLEY, on Flickr

[Tin Can]

Yes, the correct bulb, wood plug and tubing bought directly from Packard Shutter Co works best!

https://packardshutter.com/

I bought two some years ago, absolutely works best!

This year I discovered I could splice in 30 feet of RO Hard Tubing and operate one very well

On another note, getting the proper rubber tubing and rubber bulb is somewhat important to the correct operation of a Packard shutter. A bulb that is too stiff or too flimsy won't be very reliable. Stiff tubing is annoying to use and tubing that is too flimsy can expand instead of the air forcing the piston to move.


Calumet C1 8x10 View Camera with R. Knoll Doppel-Rigonar 360mm f5.5 and Packard Shutter mounted to lens board by JOHN EARLEY, on Flickr


Ansco 8x10 with 14" Veritar f6 lens on shop made lens board and camera mounted Packard shutter by JOHN EARLEY, on Flickr

[martiansea]

Here's mine; just finished! Mounted in a B&J 5x7 that I'm reviving.

Not as big as the ones discussed here, but large enough to have plenty of opening space for that big chunky Raptar and my 19" Artar. Was a fun exercise in figuring out how to get it squeezed inside the camera. You can see there's no room to spare. Mounted the air fitting by enlarging one of the shutter's mounting holes, as John suggests is a possibility in one of the recent Packard videos (though he probably didn't think it could be done with the shortest fitting available. Hahaha!) Got the air fitting and #6 pin, along with some fresh air hose, brand new from him. Shutter is vintage and included the original bulb which still works very well.
I have another lens board cut to try to mount this same setup in my Seneca 8x10, but that board is even smaller than this, so it remains to be seen if that can be done. The footprint fits, but the extra bits make it a little worrisome.
First time playing with a Packard and I'm hooked. Love the simplicity, and I'm very much a bulb mode shooter most of the time.

I also have a much larger #6 Synchro with a 2.75" opening that I plan to mount to a Cambo board to use with my SC. But it's so big, I will probably have to mount it outside the camera.