The 52mm Firecrest SuperSlim UV 370nm Filter from Formatt Hitech is a clear, ultraviolet control filter that is also suitable for general use. When applied, ultraviolet light waves down to 370 nanometers are blocked, helping to limit the light that enters a camera to the visible spectrum. The appearance of blue casts that can occur while recording video or still photos under daylight that also features ultraviolet light are reduced, preserving color accuracy throughout the frame. While a Firecrest UV 370nm filter is sufficient under many lighting conditions, in other instances a higher degree of ultraviolet control is required, such as that provided by a Firecrest UV 400nm filter. Aside from the reduction of unwanted blue casts, no additional coloration or contrast is created, and adjustments to exposure are not required while using this filter.

Formatt Hitech Firecrest UV filters are constructed from Schott Superwhite glass for increased optical clarity as well as color fidelity, and promote nearly flat attenuation of visible and UV light. This Firecrest SuperSlim 52mm filter features a durable, lightweight, 5.5mm-thick aluminum-alloy filter ring that serves to minimize the potential for vignetting, and includes corresponding 52mm front filter threads for use with other screw-on filters. A 52mm Firecrest UltraSlim filter may be used when a non-threaded, 3.0mm-thick filter ring is needed to maximize vignetting prevention.

To eliminate internal ghosting and reflections, each glass surface of the Formatt Hitech 52mm Firecrest SuperSlim UV 370nm Filter features 15 layers of anti-reflection coating. These coatings also offer greater protection to the filter and help it to stay clean for longer than with uncoated filters, resulting in an improved beading effect when in contact with water for greater cleaning efficiency.

This UV filter is also useful as a general protective filter to leave on lenses at all times. Such filters help to reduce dust and moisture from reaching your front lens element and provide additional protection in case of drops or situations where scratching could occur.

Clear, Protective, UV Control Filter    Blocks Ultraviolet Light to 370nm    1x Filter Factor, No Exposure Change    Reduces Bluish Cast of Daylight    15-Layer Anti-Reflective Multi-Coating    Hydrophobic and Scratch-Resistant    Schott Glass Construction    52mm Front Filter Threads    Slim, 5.5mm Aluminum-Alloy Filter Ring    Plastic Case

Blocks ultraviolet light down to 370nm and reduces bluish cast of daylight when recording video or still photos.

Does not require adjustments to exposure while in use.

Creates no additional coloration or contrast.

General protection filter reduces dust, moisture, and scratches from reaching lens elements.

15-layer multi-coating prevents internal ghosting and reflections while providing an improved beading effect with water for more efficient cleaning.

Constructed from Schott glass for optical clarity.

Slim, 5.5mm-thick, aluminum-alloy filter ring helps to prevent vignetting, while remaining lightweight.

52mm front filter threads allow for use with other filters.

Plastic case for storage and transport.

Related Questions and Answers

Q: 1. How about the thickness of the filter???

A: There is no information about the precise thickness of the filter, but it is much thinner than a standard circular polarizing filter.

Q: 2. Will this filter fit a 39mm drop in filter for a Nikon F4 600 mm lens?

A: No, that filter will not fit in Nikons two versions of the 600mm lens.The two 600mm lenses are the, Nikon AF-S NIKKOR 600mm f/4E FL ED VR Lens B&H # NI6004EEDVR MFR # 20054AndNikon AF-S NIKKOR 600mm f/4G ED VR Lens B&H # NI6004GEDVR MFR # 2173The f/4E uses a 40.5mm drop in and the f/4G uses a 52mm drop in filter.The recommend polarizing filters are below.

Q: 3. Just double checking: this filter fits on the loxia 35mm f2?

A: Sorry, I don't have that lens.

Q: 4. Will this fit on the Sony Zeiss 35mm f2.8 Lens under the very specific lens hood?

A: Hi there, Constantine I can see your Sony 35mm 2.8 lens is designed with filter size for 49mm. The filter should fit into your lens. Good choice of lens for street and travel photography. Buy it without regards as Zeiss filters are the best.Laurence

Q: 5. Does it fit for Cokin Type Z filter holder? (I purchased Cokin Type Z expert kit last year).

A: This circular polarizer will only work in a 100mm filter holder which accept filters that are 2mm, particularly the Formatt-Hitech Firecrest 100mm holder. The Cokin Z holder only accept filters that are 1.6mm thick.

Q: 6. Can you stack the filters. Or dos the color get to strong?

A: It may be possible to stack filters, but it's not recommended--stacking introduces more surfaces that can reflect light and more unwanted color cast possibilities.

Q: 7. What is the weight of this filter?

A: We would guesstimate it to be approximately 1 oz.

Q: 8. Where can we buy a 0.3 filter? And also, how can we buy additional filter trays?

A: Unfortunately, we currently do not carry or special order the 0.3 / 1-stop filter (manufacturer code FCUCS4x5ND0.3) at the moment; the other Ultra Cine Superslim IRND filters are available as special order items through Firecrest. We do sell additional filter trays separately here: https://bhpho.to/3bvQXp1

Q: 9. Ring of this filter made from brass or aluminium?

A: Aluminium or another metal.

Q: 10. Does the filter come with a case?

A: Yes, the Firecrest filters come with a case.