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Forum: Film Processing, Scanning, and Darkroom 12-25-2009, 01:37 PM  
How dark, darkroom has to be?
Posted By Ben_Edict
Replies: 47
Views: 27,964
my way, too. It's much easier to work on a table, even in full darkness. Changing bags are tedious, especially when loading film holders. I would not like to load 4x5 inch sheets into the drum holder in a changing bag.

There are these nice pop-up changing tents, but they are quite expensive. I

Ben
Forum: Film Processing, Scanning, and Darkroom 12-25-2009, 06:01 AM  
How dark, darkroom has to be?
Posted By Ben_Edict
Replies: 47
Views: 27,964
Basically a darkroom should be so dark, that you can't see anything there, even after adapting your eyes.

The usual test is
: lay out a fresh sheet of printing paper on your workspace and leave it there for an hour. Place an object on the paper during that exposition time. After an hour develop the sheet. If you can't see the outline of the object, the darkroom is fine. If the paper darkens visibly, you should improve light tightness.

Avoiding ALL light is especially important for colour work. Though you can have a look of colour printing paper (only standard paper for printing from negs) in this strange brown light, handling/processing film and reversal paper (printing from slides) should be done in complete darkness. It is not as hard as it sounds, as you would usually use drums fro colour processing or a developing machine. In both cases darkness is only required while loading the machine or drums and the real processing can be done under normal light.

Ben
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