Air bulb controlled shutter good for mounting behind the lens board for working with old barrel type lenses. Or can be front mounted. This has a 3.5 inch hole and measures 6.5 inches square overall. The blades are patched, but the shutter works well in bulb mode. The instant/pin mode does not seem to work 100% of the time.
$50 plus postage. Paypal accepted.
If you need an air bulb and tubing, I can supply for $15 additional.
Still available and price reduced to $40 plus shipping cost.
Jon
Someone asked about the instant/pin mode problem and what I answered:
It could be fixed. I believe the problem is that the edge of the small aluminum plate that hits the pin needs to reshaped, possibly by epoxying a small bit of aluminum or plastic so that it strikes the pin properly. But I am not an expert on this so I could be wrong.