Replies to post #483158 on Tornado Alley (PROG)

[Zorax]

Took you an hour to google those easy questions and you still got 3 wrong?
You never said you're a photographer though, so it's understandable.
But why did you even try to answer any of these questions when you've never professed experience in the subject? Even I have to look around for things I forgot from the past. I have opinions all the time, but I'm never going to tell Hookrider how to work a rig or question his expertise. Why would I doubt or try to make him look bad like you do to people.
I'm not that insecure.

Red filter gives illumination in a darkroom without exposing the paper

A red filter can be used as a UV type effect, giving shade shade/contrast changes in black and white, or even color. On a projector or camera lens.
All modern cameras have a internal UV filer to block red frequencies. Removing it gives effects that some desire.

Trick question...

I never put silver halide in my developer, I used store bought except when I was making gum bichromate prints

silver halide is not an additive, it's the sensitivity chemical/solid embedded in the negative emulsion.

Star field is a boilerplate label mostly used in Astrophotography.