The Cokin Z-PRO 031 85C Color Conversion Filter is used when shooting tungsten film in daylight. The 85 series will produce natural colors when shooting with tungsten film outdoors. A #85 filter will decrease the color temperature from 5500K to 3400K and produce slightly cooler results than an 85B.

What do you do when you must take some photos outdoors and all you have left is tungsten film? Using tungsten film in daylight will produce a bluish cast in the photograph. The 85 series of filters will "bring back", i.e. color balance the tones in your images. These yellow filters are used to correct differences in color temperature between the recording medium (film/video) and the light source.

An 85B filter converts tungsten film to daylight. An 85C produces the coolest results - more than either the 85 or 85B. However, it is interesting to remember that an 85C is also useful as a creative warming filter with daylight film in daylight.

The Z-PRO Series is recommended for focal lengths of 20mm onwards (in the 35mm format). This filter is made of CR39 Resin which is a reputable lightweight and shock-resistant optical material also used for ophthalmic glasses.

Warms Up Daylight Film    Coolest of 85 Series    High Quality CR39 Resin

An 85 decreases the color temperature from 5500-3400 Kelvin

An 85A decreases the color temperature from 5500-3100 Kelvin

An 85B decreases the color temperature from 5500-3200 Kelvin

An 85C decreases the color temperature from 5500-3800 Kelvin

Related Questions and Answers

Q: 1. Does the LS 600X require a DMX terminator when at the end of the line or does it have a switch that terminates the dmx line?

A: Yes, the Aputure LS 600x Pro Bi-Color LED Monolight (V-Mount) should use a DMX Terminator if it is at the end of the line. You should always use a DMX Terminator when you get to the end of the line. This would be the correct industry practice because it eliminates any unexpected glitches that may occur from not Terminating DMX properly.

Q: 2. Does it have +/- green magenta adjustment?

A: The GVM Pro SD650B Bi-Color LED Monolight (650W) does not have +/- green magenta, if you looking for a light with +/- green magenta take a look at these lights https://www.bhphotovideo.com/c/product/1772721-REG/kelvin_kelvin_k_epos_600_lk1_epos_600_travel_kit.html , https://www.bhphotovideo.com/c/product/1702136-REG/aputure_ap30126a20_ls_600c_pro_v_mount.html .

Q: 3. What are the exact dimensions of the case?

A: The manufacture Aputure does not list the size of the case. But it is around from the information we have 23 x 16 x 14 inches.

Q: 4. Is the bi-color just as bright as the daylight version?

A: The Aputure LS 600x Pro Bi-Color LED Monolight (V-Mount) set to daylight is 63,900 Lux at 3.3'/1m (with Reflector). The Aputure LS 600d Pro Daylight LED Monolight (V-Mount) is 98,500 Lux at 3.3'/1m (with Reflector). So, the Aputure LS 600d Pro Daylight LED Monolight (V-Mount) is brighter.

Q: 5. Is it safe to use the control box on its side using the "floor" stands?

A: It is best to use the Control box on the Aputure LS 600x Pro Bi-Color LED Monolight (V-Mount) standing up. Not on its' side.

Q: 6. Does all the pro kit accessories fit in the bag? Or do I need to carry them apart?

A: The system is a all in one solution and the carry case accommodates all materials needed for transport.

Q: 7. Is there any products to mount a parabolic umbrella to this light?

A: Yes. please review the following light shaping tools https://bhpho.to/3rdvOpq

Q: 8. Are there any benefits having the 600x over the 600c?

A: The Aputure LS 600x Pro Bi-Color LED Monolight is a Bi-color light. Which can go from 2700-6500K CCT. While the Aputure LS 600c Pro RGB LED is a full RGB with Bi-color options. The power out put of the Aputure LS 600x Pro Bi-Color LED Monolight is stronger at Output: 63,900 Lux at 3.3' w/ Reflector, while the Aputure LS 600c Pro RGB LED is Output: 50,700 Lux at 3.3' w/ Reflector.

Q: 9. How does the provided case hold up to travel? What is a good Pelican model that could fit everything?

A: Hello, we suggest the following Pelican 1650 case. The case will accommodate all needed accessories as well a v-mount batteries and chargers. Pelican 1650 Case with Foam (Black) BH #PE1650FB • MFR #1650-020-110 https://bhpho.to/3g5fvYI

Q: 10. Is it safe to mount this light on a c-stand or do you need combo stand?

A: Yes. The unit can be mount of both c-stand or combo stand