The Tiffen 80B Color Conversion Filter 3x4"helps to increase the color temperature from 3400 to 5500K, allowing the use of daylight-balanced film in tungsten-lit conditions. The cooling effect of this filter requires a 1.6-stop increase in exposure for normal results.

This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. It measures 3 x 4" / 76.2 x 101.6mm.

Cooling Color Conversion Filter    3400 to 5500K Color Temp Increase    ColorCore Technology

Color conversion filter increases color temperature and provides a cooling effect.

Converts 3400 to 5500K for using daylight-balanced film in tungsten-lit conditions.

Filter factor of 3 requires a 1.6-stop increase in exposure.

Related Questions and Answers

Q: 1. Any padding in this, especially for lower back or does it make the hard shell hit against your back?

A: the harness works well.. but is a little snug to fit. there is no padding- this includes lower back, but it really doesn't engage lower back.. it presses against the upper part of the back (although, i'm 6'2 .. so maybe it rests differently if you're shorter). it's hard against one's back, but i've never felt any ill effects. i've climbed up steep/ long staircases in indonesia, had it on my back on a scooter.. it's served its purpose well. i was concerned about its durability from reviews but have found no issues. i recommend it.

Q: 2. Can anyone tell me if the female end of this socket is threaded so it can accept a microphone gooseneck as pictured?

A: No it is not threaded , it takes 5/8" stud

Q: 3. Hi with this filter can i put my rolleiflex lens hood on top? Thanks

A: Yes. It has a Bay 1 front so you can attach the hood.

Q: 4. will it fit a17" laptop

A: No, you cannot fit a 17" laptop in this pack.

Q: 5. I want know how many lens & body can fit in this case.

A: The RucPac Hardcase Backpack Conversion is just the straps for the RucPac Hardcase.

Q: 6. What is the exterior diameter of the piece?

A: Exactly 1 inch external diameter of tube.

Q: 7. How about Pelican 1510SC Studio Case and or Pelican 1560 Case, also compatible?

A: Yes, this will work with all versions of the 1510 and 1560 cases; the difference is in the internal layouts rather than the size.

Q: 8. Will this work with the 1485 air case or the 1535 air?

A: Yes it fits all the pelican air cases perfectly, just as long as the case has wheels it will fit

Q: 9. How do these hold up compared to brands like LEE or ROSCO?

A: These are all very similar gels that will hold up to heat.

Q: 10. What's the difference between this item and B&H#LE204R1? Are they the same item?

A: Both filter rolls have the same correction in mind, but B&H # LE204R1 comes on a smaller 1" core.