Charlie posted:You might want to try Roscolux, a film material (gel) that we have used in the photo industry for many years. Lots of colors to choose from.
As much as I hate to recommend them, B&H might be your easiest option unless you have a well stocked camera store or video rental company near by.
Charlie
Roscolux would be my first choice. It's development and primary use is in theatrical stage lighting industry. It's also used widely in the film industry for altering color temperature and diffusion. I would recommend sourcing it from a theatrical supply company. They are more likely to stock the entire range and certainly cheaper than B&H. The color that would best suit your needs would be #98, Medium Grey. You cand double it up if it needs to be darker. Here's a supplier:
https://www.norcostco.com/lighting.aspx
