The Tiffen 2 x 2" 80B Color Conversion Filter 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 2 x 2" / 50.8 x 50.8mm.

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. Is this lens parfocal?

A: Testing has shown this lens to be parfocal. It should hold focus through the zoom range.

Q: 2. What pelican case does the soft grey case fit into? I want to be able to check these and have seen them fit perfectly into a pelican case.

A: The dedicated SKB hard waterproof case from Aperture used to hold their light kits has been discontinued and is no longer available for purchase. If you are looking for an alternative hard, waterproof case that would fit the gray Aputure LS300DII & 300X Carry Case included with the purchase of the Aputure Light Storm LS300X LED Light Kit with V-Mount Battery Plate, I would recommend the Pelican 1660 Case with Foam (Black), B&H # PE1660FB, or the SKB iSeries 2918-14B-C Wheeled Waterproof Case (Black, Cubed Foam), B&H # SK3I291814BC, for your usage needs.

Q: 3. Can you use the Canon EF extender with this lens?

A: We are not aware of an EF Extender that will work with this lens.

Q: 4. Is it possible to use these with a battery? If so, which one?

A: It is not possible to use these with a battery

Q: 5. Does this lens have built in image stabilization?

A: No it does not have built in IS. This is not a feature of cinema lenses in general.

Q: 6. Can this light except an umbrella modifier?

A: The Aputure LS 300x Bi-Color LED Monolight (V-Mount) does not have a built-in hole to accept the shaft from an umbrella. As such, you would have to purchase an adapter such as the Impact Swivel Umbrella Adapter, B&H # IMCA108, which has an umbrella socket built into the adapter. It is compatible for use with umbrellas that have 7mm and 8mm umbrella shafts. Do note that the center of the umbrella will not be aligned with the light head, so you will have to tilt the light fixture to aim it toward the center of the umbrella.

Q: 7. Does it come with hood?

A: Yes it does come with Lens Hood

Q: 8. What are the dimensions of the case for the Nanlite Forza 300B II Bi-Color LED Monolight (Travel 2-Light Kit)?

A: The case for the Nanlite Forza 300B II Bi-Color LED Monolight (Travel 2-Light Kit) BH #NAFORZ300B2K is about 27 x 17.75 x 15".

Q: 9. Can this light be used to light an outdoor scene from 20 meters away?

A: The GVM SD300D Bi-Color LED Monolight is, 56,600 Lux at 3.3' w/ Reflector. 20 meters away is a lot and so the light will be pretty dim.

Q: 10. Does this work with the Canon EF 2X III Extender?

A: no the Canon PL-Mount CN-E 30-105mm f/2.8 L will NOT work with the EF 2x extender