I am using a sort of ortho film, does not see red. I am shooting a scene that includes blue sky and white clouds. Does anybody have a suggestions for filtration that would make those clouds stand out.

Using my usual tri-x I would use a red #25. but I would receive blank image with this film. I have tried my polarizer with some success.

I think I may run a test this afternoon. Four images, no filter, blue filter, yellow filter and green filter.

-- paul schuster (paul@schusterphoto.com), July 08, 2000

Answers

You could possibly try a grey or N.D. grad filter to help bring out the sky. also you may try one of the weirder filters from Lee - e.g. lilac.

-- David Kirk (David_J_Kirk@hotmail.com), July 08, 2000.

Use a yellow or green.

-- William Marderness (wmarderness@hotmail.com), July 08, 2000.

With ortho film which is sensitive to blue light, the sky would be white because of the blue sky. The clouds would fade into nothing. A red filter will cut the blue light so the clouds should stand out. But why are you using this film for your sky/cloud study? Use a red filter with normal film, underexpose by a stop or two more than normal and polarize the sky for a deep black sky and contrasty clouds. James

-- james (james_mickelson@hotmail.com), July 09, 2000.

The standard filtration for ortho under those conditions a generation or two ago was a Wratten k1 filter, equivalent to a modern #6

-- John Lehman (al7jj@yahoo.com), July 10, 2000.