Chris Gardner
4-Dec-2004, 19:36
Hello,
This is the first time I have listed a question in this forum so please accept my greetings. I have searched the forum archives for info on vacuum film holders and did not find my answer there so...
Does anyone have personal hands on experience using Hoffman 8x10 vacuum film holders? I purchased several in anticipation of my own need, but I am a little uncertain as to what I should use to create the suction. A metal tube sticks out between the dark slides. Can I use a bulb with a lock like a blood pressure gauge? A bulb will push air in, but when I start to let go it would suck air back in pulling the film tight, no? I need a setup that will hold its suction for extended exposures. Was there an original configuration that would have come with the holder?
It should be noted that I want to work in the field, possibly at night, and would not consider an actual vacuum pump like a darkroom easel would use.
I have the Hoffman Camera Co.'s info, but I wanted to ask here first to see if anyone had used the holders first.
This is the first time I have listed a question in this forum so please accept my greetings. I have searched the forum archives for info on vacuum film holders and did not find my answer there so...
Does anyone have personal hands on experience using Hoffman 8x10 vacuum film holders? I purchased several in anticipation of my own need, but I am a little uncertain as to what I should use to create the suction. A metal tube sticks out between the dark slides. Can I use a bulb with a lock like a blood pressure gauge? A bulb will push air in, but when I start to let go it would suck air back in pulling the film tight, no? I need a setup that will hold its suction for extended exposures. Was there an original configuration that would have come with the holder?
It should be noted that I want to work in the field, possibly at night, and would not consider an actual vacuum pump like a darkroom easel would use.
I have the Hoffman Camera Co.'s info, but I wanted to ask here first to see if anyone had used the holders first.