Exposure times

[zlandrum]

Hey fellas, I've got my own rig set up, and I've got a 600w halogen 2 feet away from the screen... anyone have a suggestion of how long i should let it burn my screen? Any and all suggestions appreciated.

Zach

[paul204]

there's a white box and a magnifying glass at the top right

[vrooooom]

If you're using QTX or another fast emulsion, try a test around 20 minutes with an exposure calculator. Otherwise.... 45-1 hour or more? Depends on a lot of factors.

Need to know:

-emulsion.
-positive material.
-coating style.
-exposure unit type.

Do the proper testing by changing only one element at a time, such as the length of exposure. Do a step wedge test or use an exposure calculator / stouffer scale.