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Rosco Filter Facts II

Rosco Filter Facts - Part II


CalColor (Calibrated Color by Rosco)
Calibrated Color by Rosco is a series of color effects lighting filters designed specifically to the spectral sensitivity of color film. Series I colors include the primaries Blue, Green and Red, along with the secondaries Yellow, Magenta and Cyan. Series II intermediary colors will follow. Each color is designed in four densities; 15cc, 30cc, 60cc and 90cc, corresponding to the familiar lens filter or color printing calibrations.

In color photography, three light-sensitive emulsion layers separately record the individual blue, green and red components of the spectrum. CalColor filters adjust the transmission of these color components at the individual light source in a familiar and reliable manner. As a result, the cinematographer can exercise selective and predicable control over the coloration of various elements within the scene.

For instance, a CalColor 90 Green selectively enhances green transmission - it does this by effectively reducing both the blue and red transmission by three stops. Similarly, a CalColor 90 Magenta enhances blue and red transmission by effectively reducing the green transmission by three stops.

In addition to their use as color effects filters, CalColors serve a number of technical purposes. The primaries in the 90 density offer both the saturation and separation characteristics needed for lighting a clean matte composite background (the complimentary tints then become useful choices for backlighting the subject to neutralize any spill that could cause contamination or color fringing in the matte). They are also useful for color correcting industrial lamps, or in black-and-white photography for altering the tonal rendering of colors in a scene.

For further information, please consult the CalColor swatchbook.
Primaries
Secondaries
Intermediaries
4215
15 Blue
4307
07 Cyan
4815
15 Pink
4230
30 Blue
4315
15 Cyan
4830
30 Pink
4260
60 Blue
4330
30 Cyan
4860
60 Pink
4290
90 Blue
4360
60 Cyan
4890
90 Pink
4415
15 Green
4390
90 Cyan
4915
15 Lavender
4430
30 Green
4515
15 Yellow
4930
30 Lavender
4460
60 Green
4530
30 Yellow
4960
60 Lavender
4490
90 Green
4560
60 Yellow
4990

90 Lavender

4615
15 Red
4590
90 Yellow
4630
30 Red
4715
15 Magenta
4660
60 Red
4730
30 Magenta
4690
90 Red
4760
60 Magenta
4790
90 Maganta
CalColor Kit

The CalColor Kit consists of 10 in. x 12 in. (25 cm x 30 cm) sheets of each of the 32 colors in the CalColor range. The kit is packaged in a handy storage pouch with a reference brochure and swatchbook. #4010 CalColor Kit

Rosco E-Colour

European-style Color Correction and Effects Filters

Rosco has consistently been the recognized leader in filter technology for the past 85 years. Rosco E-Colour continues that tradition with a comprehensive collection of filters for those who are accustomed to the European-style color names and numbering system.

Each E-Colour filter is manufactured through a unique coating process, utilizing the latest in dye and polymer technology. As a result, they equal or exceed the performance of competitive European filter brands. E-Colour filters are available in rolls 48 in. x 25 ft.(122 cm x 7.62 m), or sheets 21". x 24" (53 cm x 61 cm).

Color Correction Filters
201
Full CT Blue
212
LCT Yellow
281
3/4 CT Blue
213
WF Green
202
1/2 CT Blue
236
HMI to Tungsten
203
1/4 CT Blue
219
Fluorescent Green
218
1/8 CT Blue
244
Plus Green
200
Double Blue
245
Half plus Green
204
Full CT Orange
246
Quarter Plus Green
285
3/4 CT Orange
278
Eighth Plus Green
205
1/2 CT Orange
247
Minus Green
206
1/4 CT Orange
248
Half Minus Green
223
1/8 CT Orange
249
Quarter Minus Green
207
CTO + .3 Neutral Density
279
Eighth Minus Green
208
CTO + .6 Neutral Density
226
UV Filter
298
.15 Neutral Density
130
Clear
209
.3 Neutral Density
441
Full CT Straw
210
.6 Neutral Density
442
Half CT Straw
211
.9 Neutral Density
443
Quarter CT Straw
299
1.2 Neutral Density
444
Eighth CT Straw
Diffusion Materials
214
Full Spun
257
Quarter Hanover Frost
215
Half Spun
217
Blue Diffusion
229
Quarter Spun
224
Daylight Blue Frost
216
White Diffusion
225
Neutral Density Frost
250
Half White Diffusion
228
Brushed Silk
251
Quarter Whit Diffusion
129
Heavy Frost
252
Eighth White Diffusion
220
White Frost
253
Hanover Frost
221
Blue Frost
256
Half Hanover Frost
Reflection Materials
270
Scrim
272
Soft Gold Reflector
271
Mirror Silver
273
Soft Silver Reflector
Other Cinegel Products

Photo Kits
A variety of Cinegel filters are available in four economically-priced kits. Each kit is suited for particular applications and contains at least ten 10 in. x 12 in. (25 cm x 30 cm) sheets packaged in a handy reusable storage pouch.
#3020 Diffusion Kit
#8525 Color Effects Kit ((Popular Roscolux Effects Filters)
#9010 Cinegel Sampler Kit (Popular Cinegel Assortment)
#9012 Color Correction Kit (Color Correction Assortment)

Video Monitor Correction Kit

Optical film kit designed for color correcting video monitors to standard tungsten studio balance. Kit contains two 60 in. x 48 in. (152 cm x 61 cm) sheets of thin-gauge film, together with applicators and installation instructions.

Polarizing Filter
Neutral-grey linear polarizing filter for use on lights. Reduces reflected glare from surfaces such as glass, water, paper, plastics and metal. Best used in conjunction with a lens polarizing filter. Available in sheets 19 in. x 20 in. (48 cm x 50 cm), or rolls 19 in. x 5 ft. (48 cm x 150 cm).

UV Filter
A slightly warm filter that absorbs 90% of UV below 390 nanometers. Available in sheets 20 in. x 24 in. (50 cm x 61 cm), rolls 24 in. x 50 ft. (61 cm x 15.2 m), rolls 48 in. x 25 ft. (122 cm x 7.62 m) or as 48 inch (122 cm) sleeves designed to fit T-8 or T-12 fluorescent lamps.

Heat Shield
A protective colorless filter of extremely heat-stable polymer, specially designed to deflect heat. Available in sheets 20 in. x 24 in. (50 cm x 61 cm), rolls 24 in. x 50 ft. (61 cm x 15.2 m), or rolls 48 in. x 25 ft. (122 cm x 7.6 m).

Thermashield
A transparent film with a multi-layer coating for reflecting most of the damaging infrared heat emitted by film and television lighting fixtures. Available in sheets 12 in. x 12 in (30 cm x 30 cm) or 20 in. x 24 in. (50 cm x 61 cm).

PermaCine Dichroic Filters
Rosco dichroic filters are durable, high-temperature glass filters that reflect rather than absorb the unwanted wavelengths of the spectrum. As a result, they will not burn or fade, even when used with the hottest film and TV lighting fixtures. Each is available in a variety of sizes, up to 13.5 in. in diameter.
Dichro CTO
Dichro 1/2 CTO
Dichro 1/4 CTO
IR/UV Shield

Cinegel, Cinelux, Cinefoil, Roscolux, Supergel, CalColor, E-Colour, Thermashield, and Cinechroic are Trademarks of Rosco Laboratories, Inc. Unauthorized use is prohibited. The CalColor system is patent pending.

Information from Rosco's web site.
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