A Tiffen 105C (Coarse Thread) FL-B Filter is used to correct the color balance when shooting tungsten film under fluorescent lighting.

An FL-W filter is used to balance daylight film under warm white or white type fluorescent lamps. Tiffen FL-D filter is used when you wish to correct for the greenish tone that appears when shooting daylight film under general purpose fluorescent lighting. 

Fluorescent lamps burn at many different temperatures and often require more demanding filtration for exact results. For specific filtration and professional use, it is strongly recommended that a color temperature meter be employed along with Color Correction filters (i.e.CC30M) when shooting under fluorescent lighting. This is the only proven way to achieve exact color correction.

Converts Tungsten to Daylight    ColorCore Glass

Pleasing skin tones under fluorescent lighting without flash

True-to-life color rendition

Essential in any environment where ambient light source is fluorescent

Related Questions and Answers

Q: 1. Could you please explain exactly what Nikon refurbished means?Can you give examples as to why a lens would be refurbished? Does a refurbished lens still have the same manufacturer’s warranty as a new lens? Is it a US model or gray market model?

A: Hi, Refurbished items are products that for many reasons did not meet early quality controls at the factory so were not shipped initially. After testing, a manufacturer may determine a product meets all the specifications but does not want it sold as new. A “Refurb” is such an item; which has never been sold, meets the advertised specifications and includes a warranty which may be shorter than the original one offered for a “new” item.

Q: 2. What about a filter for protection over the front of the lens?

A: David. First off, I absolutely love this lens. It is simply amazing in all aspects. Bit heavy for an old guy but much, much lighter then the old NIkon 400 and the new Nikon 600mm and 800mm. As to the filter. First off there is nothing to screw a traditional Hoya UV filter into. During investigation I read Ken Rockwell's articles on the Nikon 400mm f/2.8 FL VR lens. I recommend you read it. He seems to indicate that the lens comes complete with a built in front protective piece of glass called a meniscus protective glass element This glass is not part of the optical glass elements, but has some ghosting features. Following this info, I had a live chat with on of the B&H technical consultants and questioned them about a UV protective filter and they backed Ken's article. The Nikon hood provided with the lens is very durable but a bit awkward at times. My wife donated a size 6.5 lightweight Vanessa Shoe bag that is perfect to cover the front of the lens when not in use in the field. Its a very effective fast on, fast off dust cover and even has a draw string to tighten onto the lenses when installed. Hope this helps.

Q: 3. Can I use any other teleconverter with this lens?

A: Yes. You can use any of the Nikon teleconverters.

Q: 4. Will the IBIS inside the Leica SL2 camera work if a Canon FD lens is mounted with this adapter, seeing as how there is no electronic communication?

A: Yes, the 5-Axis Sensor-Shift Image Stabilization inside the Leica SL2 Mirrorless Camera would still be operational when using the Metabones Canon FD/FL Lens to Leica L Camera T Adapter (Black) on the camera.

Q: 5. I am considering purchasing this lens. With the supplied TC installed, how many AF points are available with the D4s or D810? How are the points grouped or spread out?

A: All the points as any other prime lens I have used. I use this lens on a d-3x , d-800 and a d-810.It performs the same with or without it's dedicated tc. You have to make sure your firmware is updated on each of your bodies. Check Nikon s website for free download of firmware if necessary.Hope I helped you. Sorry about the delay as I was away for awhile.Regards,Tony Kuklis

Q: 6. My specialty is photographing birds in flight. With super long lenses, I often lose shots because I cannot find the bird with the lens because the field of view is so narrow. Does someone make the equivalent of a hot-shoe mounted spotting scope for long lenses like the 800?

A: I am not aware of such a device that would go into the hot shoe.

Q: 7. What is required to use this lens for the solar eclipse?

A: The sun.

Q: 8. Hey i Will ask you if the Nikon 400mm f2.8 do well on the new Nikon d5 I just have bought. And I have also the Nikon 300mm f4 and it is pretty sharp is the 400mm f2.8 sharper ore do you think it is around the same?

A: The Nikon f2.8 and D5 are an awesome team. The D5 by itself is incredible for low light and all other conditions. Recently used it at night in Disneyland to record the Water/Laser shows. Did a amazing job. I also like the D5 with my Nikon 80-400 lens for flexible shooting.

Q: 9. can this lens be used with an FTZ adapter on a Z7II?

A: Yes, the Nikon AF-S NIKKOR 500mm f/4E FL ED VR Lens can be used with the Nikon FTZ adapter to mount with the Nikon Z7 II.

Q: 10. What is the recommended backpack (with good protection) to carry this lens with reverse hood attached to a Nikon D5 camera?

A: The Think Tank Photo Glass Limo Backpack (Black), BH # THGL is a suitable backpack for your D5 with this Nikon lens attached. https://bhpho.to/2K1XGcx