Featuring a unique 15-layer multi-coated design, the Formatt Hitech 52mm Firecrest SuperSlim Polarizer Filterhelps to reduce reflections and glare as well as increase the overall saturation of an image. This unique polarizer filter is characterized by the advanced Firecrest coating, which offers full attenuation of UV light for increased clarity and contrast, as well as a marked reduction in surface reflections and protection against scratching.

A polarizing filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A circular polarizer differs from a linear polarizer in that it supports full use of a camera's autofocus and auto exposure functions.

The SuperSlim aluminum alloy filter ring measures 7.5mm-thick and its slim design helps to minimize the likelihood of vignetting. This filter features front threads for stacking additional filters or attaching a lens cap.

Minimize Reflections and Glare    Reduces Haze and Blue Cast in Landscapes    Enhances Color and Tonal Saturation    15-Layer Firecrest Multi-Coating    Neutral Results Across All Spectrums    Hydrophobic and Scratch-Resistant    Schott Superwite Glass, Aluminum Ring    Stackable Filter Ring, 7.5mm-Thick

Reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.

Arrange and filter directionally polarized light perpendicularly to the reflected light allowing for the absorption of much of the light.

Lessens haze in distant landscapes and provides more saturated, vivid colors.

Strongest effect when used at a 90° from the sun.

The 15-layer Firecrest coating has been applied directly to the filter glass by way of a vacuum-formed, hard-coated, electrolytic process. The multi-coating is water- and scratch-resistance for greater overall durability.

Firecrest coating attenuates UV contamination, as well as surface reflections, for increased contrast, clarity, and acuity.

Schott Superwite glass is used in order to maintain clear image quality and high light transmission.

The aluminum alloy SuperSlim filter ring measures 7.5mm-thick and features front threads for stacking additional filters.

Related Questions and Answers

Q: 1. Is the front threaded? For protective Cap Storage?

A: Yes, it has a 95mm front thread.

Q: 2. Are you guys an authorized dealer of Hoya? Would their factory warranty be included with the purchase of this filter?

A: Yes, we are an authorized retailer of Hoya products. This filter comes with a manufacturer's warranty, yes.

Q: 3. What is the thickness of this "slim" filter?

A: This filter is 5.2mm thick.

Q: 4. is this filter appropriate for film cameras, or more importantly, will it work on a lens attached to a film camera?what's the advantage of the lens being non-coated?

A: Yes that filter is fine for film or digital cameras.Lenses and filters with coatings are in general much better. Lens and filter coatings help limit flair and will than make the image look better and give it a good contrast. So it is a benefit to have lenses coated.

Q: 5. Will this fit on canon EF 50mm f/1.8 STM lens?

A: The Canon EF 50mm f/1.8 STM Lens accepts49mm filters, including this one.

Q: 6. Will this work with a Lee Foundation Holder or a Cokin Z-Pro holder?

A: Unfortunately no, this filter will not work. Those filter systems require square or rectangular filters.

Q: 7. WHAT OTHER BRAND 105mm CPL FILTERS CAN BE FITTED TO LEE 105mm CPL ADAPTER ONTO LEE 100mm FILTER HOLDER?

A: As long as you have this 105mm adapter on your Lee foundation kit: https://bhpho.to/2cujqJ5 You will be able to use any filter that has 105mm threads such as this Haida 105mm circular polarizer.

Q: 8. 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: 9. What is the light transmission of this?

A: Sigma does not have any published specifications for light transmission of this CPL (which I believe is typical because most CPLs have filter factors in a range) but does advertise a 30% increased transmission over their competitors' CPLs. This filter does have a 0.3-0.5 stop reduction of light, which equates to a theoretical numerical transmission of 81.2% (at 0.3 stops) to 70.7% (at 0.5 stops), the formula being 100% multiplied by half to the power of 0.3 and 0.5.

Q: 10. 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.