Quote Originally Posted by jeroldharter View Post
I bought a Thomas safelight off Ebay recently. Mine has yellow filters. Did a safelight test with Kentmere FP VC paper this weekend. I flashed the paper with the subthreshold exposure from the RH Designs paper flasher and then exposed the paper to the safelight at the average distance for 7-8 minutes. Major fogging. I had the windows of the safelight mostly open so it was very bright.
Thanks for taking the time to do a test...

Well, there you have it. I thought the sodium vapor bulb was inherently safe...

Makes me wonder... Is your problem faded filters? Is it the extended spectral sensitivity of your VC paper (where maybe the Thomas would work great with Graded papers)?