Tonight I was able to try some experimentation with the various filter options I have. I cut the gels and plexiglass to fit my Cokin adapter and set everything up on my rig. I set focal length to 60mm, ss 1/60th, f 2.5, and let iso autoadjust. In all pictures it auto selected 3200. I went out with my light in my yard and found a centipede that fluoresced pretty strongly and chose that as my subject. With each filter I shot five frames and tried to keep the same distance but it was dark and i was walking inside and out with each filter to write everything down so there is some variability. I selected the best shot from each group and cropped each so that the centipede is about the same size in each, and i showed some light spill in the right side of the frame on the mulch he was on to judge how much of the blue is making it through the barrier.
The order of shots were as follows
yellow #2208 transparent plexiglass 1/16 inch 12x12
chinese sources cokin p yellow conversion filter that just appears to be he right color yellow.
Lee filter medium yellow 010
Rosco filter Canary 312
Lee filters Spring yellow 100
Lee filter yellow 101
The Chinese sourced cokin sized filter appears to my eye to be the same as the yellow 2208 plexiglass sheet i bought and the images look nearly the same. These were the best to my eye. The lee 101 was a runner up followed by Lee medium yellow 010. The others I did not like. the two acrylic/plexiglass filters do have better optical quality in the samples.
Edited by aviator8, 17 April 2019 - 06:34 AM.