Rosco Cinegel Swatchbook

it means, Color Temperature Blue (CTB) .

No it doesn't. I checked every single sample in the entire swatchbook.

Yes

yes

I'm not sure these are optically clear. I'd be surprised if you can good image quality unless it is. They will cover that lens

only use the tester Cinegel to know the temperature of filter I need to make my roll filter perder. I suggest buying loose filters and cut to size you need.

Mine is dated December 2016 and contains 178 unique samples.Of those, there are:- Tungsten conversion filters (7 CTB filters including a 1/3 CTB filter);- Amber daylight conversion filters (6 CTO filters but there is no 1/3 CTO filter);- Straw daylight conversion filters (4 CTS filters but there are no 1/3 or 3/4 or double CTS filters);- 4 neutral density filters;- 1 Sun 85 filter;- 3 Sun 85 - ND combination filters (but they are not properly labeled so I'm not sure which is which);- 2 black scrims (one silver scrim is included in the reflection media bunch);- Fluorescent filters, of which one can count 4 plusgreen filters (there is no 3/4 plusgreen), 5 minusgreen filters, one #3310 fluorofilter, one #3152 urban vapor filter and one #3150 industrial vapor filter;- Diffusion media, of which one can count 25 clear filter materials, 2 blue filter materials, 2 straw filter materials and one #3090 moonlight grid cloth;- 5 arc filters, including one UV filter and 4 other miscellaneous filters;- Reflection media, including 5 silver materials, 1 silver/gold combo material (reversible), 2 gold materials, 1 silver scrim and one #3840 cinebounce white-black (reversible);- Calcolor gels, including 4 blue gels, 5 cyan gels (there is an extra 07 sample in addition to the 15, 30, 60 and 90 found in every other color), 4 green gels, 4 yellow gels, 4 red gels, 4 magenta gels, 4 pink gels, 4 lavender gels;- 10 gels from the Storaro collection;- 51 gels from the Cinelux collection.