Recently got a 5 inches time-only packard shutter (#5?) from eddie, by proper practice I can get around 1/4 sec to 1/8 sec ....
Why I can't get a faster shutter speed ?? By luck, I put my finger on the top of the copper piston and found that the speed increase!! well ... let's do the modification ..
This is the original packard shutter
These are the parts;
Spring
Aluminum part (not sure how to name it!)
Aluminum part with screw
Put all things together (you know how it works, right?)
Without the spring, I can get 1/4sec or 1/8sec by my careful hand-action. By inserting the spring, I can get around 1/15sec (not verified yet) ......
I am still looking for another spring, e.g. different size, length ... and see if it ends up with different speed by lowering the screw ....
Interesting. You are on to something here.
Go try some springs for BB gun, that is really strong and reacting very fast!
"Spring Cowling" perhaps is a good name for the aluminum part?
Cool idea. Perhaps color code your springs for various shutter speeds?
Sailhonba; tried some strong spring today, doesn't work. The copper piston isn't strong enough to push the spring all the way.
Walter; color code is a good idea ..... thanks
And where might one obtain one or more examples of said "Spring Cowling'?
Old thread but same old problem.
The 5" Packard I have has a similar problem. Part of the problem is this 5" like my 5" has extra bat-wings inside and is much different than my two 4.5" Packards which work perfectly.
I wonder if this solution ever worked?
Tin Can
Or use Jim Galli's darkslides in front of the lens method.
No way can I do that. I have watched his wizardry. I need a gadget.Originally Posted by dsphotog
Tin Can
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