The Formatt 105mm Green 56 Filter is used to control contrast in black and white film. This  filter is ideal for scenes where it is important to differentiate the green tonal values in black and white photography. This is a green filter that produces light foliage on black and white film. It is also used for contrast effects (lightens green/darkens red)

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

For Black and White Film    Schott Glass

Filters for black and white photography perform a variety of filtration effects including contrast control, enhanced skin tones, tonal corrections and more dramatic landscapes

Although originally intended for use with black and white film, this filter can also be used as a creative tool in color imaging

Related Questions and Answers

Q: 1. is this lens compatible with canon EOS Rebel T4i?

A: All Canon L-series lenses would be fully compatible for use on all Canon EOS autofocus cameras manufactured since 1987, both 35mm film SLR cameras and digital DSLR cameras alike. As such, the Canon EF 24-105mm f/4L IS USM Lens is fully compatible for use with the Canon EOS Digital Rebel T4i DSLR camera. This lens will fit all Canon cameras which use the EF lens mount that has the red dot on the lens mount.

Q: 2. I own an EOS 80D, for video I've found out the included lens (Canon 18-135mm) in the Video Creator Kit performs wonderfully but for photography, would I gain quality with this Canon 24-105mm F/4?

A: The included 18-135mm lens in the Video Creator Kit for the 80D is f/3.5-5.6. That means as you zoom in the aperture will stop down. This 24-105mm has a constant aperture of F/4.0. As you zoom in, the aperture will not stop down. Also the 24-105mm is an L Lens. L lenses are Canon's highest quality of glass, so the overall quality will be nicer on this lens than the kit lens.

Q: 3. Can the 24-105mm/f4L IS USM be used to give Full-Frame results on a Full-Frame format Canon body, such as 5D Mark III, or the expected EOS 5 DS?

A: Yes it can be used on full frame cameras.

Q: 4. I was wondering if this lens is weather sealed so that I can take photos in less then ideal conditions light rain or in the winter time with those big wet snow flakes coming down at a fast pace. Thank You!

A: you can buy a cover to protect it.

Q: 5. Can you recommend a lens case (such as Lowepro) for this lens?

A: The Lowepro Lens Case 11 x 14cm (Black), BH #LOLC1114, is a great option for the Nikon AF-S NIKKOR 105mm f/1.4E ED Lens.

Q: 6. can i use this with 77d?

A: Yes, the Canon EF 24-105mm f/4L IS USM Lens, B&H # CA241054LIS, would be compatible for use with the Canon EOS 77D DSLR camera.

Q: 7. Where was this product made? Do you know what the country of origin is?

A: Mine was made in Japan. Excellent lens!

Q: 8. Will this work with the EOS R

A: Yes.

Q: 9. How does the EF 24-105 compare with the EF-S 18-200 as to sharpness and image quality?

A: The Canon 24-105mm f/4L EF IS USM lens would be slightly sharper compared to the Canon 18-200mm f-3.5-5.6 IS lens. However, it would have much better performance in regards to optical distortion and vignetting performance, and is slightly better in regards to chromatic aberration performance. As such, the Canon 24-105mm f/4L EF IS USM lens would have overall better optical quality and performance compared to the Canon 18-200mm f/3.5-5.6 EF IS lens.

Q: 10. Can I use this lens on Canon EOS C300?

A: Yes, this lens should be compatible with the C300. Both mount types are same