The Rosco E-Colour #225 ND Frost Filter 21x24" Sheetis produced with high quality dye formulations and bonding technology. This filter is part of a comprehensive system of European color filters from Rosco for film, TV, or video production. The E-Colour series consists of virtually every possible color and material for color effects, alteration, diffusion, and reflection.

Dye Formulation and Bonding Technology

Related Questions and Answers

Q: 1. Can I use these sheets to reduce light intensity for food photography in my softbox?

A: These sheets will reduce half a stop of light. You could use them with softboxes for food photography.

Q: 2. Frost means its matt finish on this one? So its not clear see through?

A: This filter would have a matte finish to it.

Q: 3. I asked abbout floppy/stiff in my last question, but the answer seems conflicting. If it's 3mm thick, is it really floppy? That's pretty thick for floppy.

A: This material is not 3mm it is probably 3 mil, which is much thinner than 3mm and is very pliable.

Q: 4. Would it be possible to leave the ND gel attached to the window for an extended period (for example, 1 year)? Would it stick for that long using the window cleaner solution attachment approach?

A: This ND has no adhesive.

Q: 5. If you use window cleaner or clear sugary drink (as I've seen suggested here), how do you clean the gel after the shoot?

A: Truth be told you don't necessarily have to clean The Rosco E-Colour #211 .9 Neutral Density (48 x25' Roll) B&H # ROE211R48 MFR # 102302114825 after a shoot, but if you find that you do, what I suggest is to get the following 2 items. The former is less abrasive than a window cleaner and the latter is a nice Chamois cloth, good for a wide variety of cleaning tasks.Endust 16 oz Anti-Static Gel LCD & Plasma Screen Cleaner B&H # EN11308 MFR # 11308Japan Hobby Tool Chamois Skin (5.9 x 5.9 ) B&H # JAJHT9594 MFR # JHT9594

Q: 6. How do you trim these to a large window seamlessly without light leaks? Especially a window twice the size of the roll?

A: Have the following professional installed by someone who does car tint windows for the best seamless install.

Q: 7. what do you use to tape this to a window?

A: I don't use tape...One way to put ND on a window is cut to size, wet down the window with plain water and sponge, press the gel on the glass and wipe/press down with a squeegee to smooth it.

Q: 8. What's the transmission on this?

A: According to Rosco the transmission is 64%.

Q: 9. Could this be cut down and used in the filter stage of a darkroom enlarger to reduce exposure?

A: Yes, the Rosco E-Colour #211 ND .9 Filter (21 x 24" Sheet) could be cut into smaller pieces and used in other contexts, like a darkroom enlarger.

Q: 10. Are these stackable?

A: Yes, you can stack the E-Colour #209 .3 Neutral Density Filter.