Douglas
18-May-2013, 07:42
My Eastman No 2 (5x7) has a modified front standard.
The hardware for securing the 4 1/2 inch square regular lens board has been removed
and replaced with a large brass plate below the level of the regular lens board.
There is a hole in the plate that that I believe was use for air release tubing to an internal Packard shutter.
See photos.
If so : What size Packard shutter ?
I like the idea of having an internal shutter and being able to use barrel lenses.
The rear cells of my present lenses do not penetrate very far into the bellows chamber.
Ektar f 7.7 203mm and CZ Tessar 13.5cm f 4.5 , both have shutters.
As you can see, I have mounted my lenses on very large lens boards and have used the lip/trough of the brass plate to hold the bottom of the new lens board. The top of the lens board is secured by the piece of brass that stabilized the top of the front standard.
I have not found a small hole that could have been use for the "pin" that some Packard shutter have for the "1/25" second speed.
I assume the shutter was for Time exposures only.
Are my assumptions even close to being correct or do I not have a clue ?
Thanks
Douglas953159531695317
The hardware for securing the 4 1/2 inch square regular lens board has been removed
and replaced with a large brass plate below the level of the regular lens board.
There is a hole in the plate that that I believe was use for air release tubing to an internal Packard shutter.
See photos.
If so : What size Packard shutter ?
I like the idea of having an internal shutter and being able to use barrel lenses.
The rear cells of my present lenses do not penetrate very far into the bellows chamber.
Ektar f 7.7 203mm and CZ Tessar 13.5cm f 4.5 , both have shutters.
As you can see, I have mounted my lenses on very large lens boards and have used the lip/trough of the brass plate to hold the bottom of the new lens board. The top of the lens board is secured by the piece of brass that stabilized the top of the front standard.
I have not found a small hole that could have been use for the "pin" that some Packard shutter have for the "1/25" second speed.
I assume the shutter was for Time exposures only.
Are my assumptions even close to being correct or do I not have a clue ?
Thanks
Douglas953159531695317