The Formatt 4 x 4" Yellow 8 Filter is commonly used for a noticeable increase in contrast with black and white films. When your black and white images are flat, throw on a contrast filter.

Contrast in black and white is generally controlled by yellow, orange and red filters with red producing the greatest contrast. Moderate changes can be accomplished with yellow which can, generally, bump up the contrast just enough to make the difference between a "muddy" print and an acceptable image.

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.

4mm Thick    For Black and White Film    Minimal Contrast Boost    Schott Glass

Especially useful for added contrast between blue sky with clouds and foreground

Related Questions and Answers

Q: 1. Does it fit the Cokin P series holder?

A: Yes the Cokin P-series holder fits 84 mm and 85 mm filters.

Q: 2. Does this have a brass threaded ring?

A: Yes, Formatt Hitech uses brass rings.

Q: 3. What do you need to cut the foam?

A: Just your fingers, can create tight fit for your equipment. Be cautious, once removed, always removed.

Q: 4. are these IRND?

A: These filters would simply be ND filters. They are not IRND filters. Though, we do carry two Formatt Hitech 150 x 150mm ProStop IRND Three Filter Kits.

Q: 5. Does this filter have an anti-reflection coating?

A: Yes it does. The filter is multi-coated and does include anti-reflective coatings.

Q: 6. Can this fit a Matterport Pro2 camera?

A: Given the dimensions of the case and the Matterport, no, I don't believe it will fit. I would recommend the Pelican 1450 case. Click the link below to view; https://bhpho.to/39l0QAI

Q: 7. How much weight can this strap hold and stay afloat?

A: This floating wrist strap was originally designed for the Pentax Optio WG waterproof cameras, which weigh about 7-8oz each. I would not recommend using with any items which weigh more than that without doing a test at home first.

Q: 8. Is this filter brass or aluminum?

A: This filter has an aluminum ring.

Q: 9. The specs say 101.6 x 101.6 mm. Will these fit in a 100mm filter holder?

A: Yes, these will fit in a 100mm filter holder.

Q: 10. Can I get a battery

A: Yes. Please review what rechargeable batteries we have to offer. https://www.bhphotovideo.com/c/search?q=18650%20Lithium-Ion&sts=ma