| Within three filter groups, GENERAL, COLORED, and SPECIAL EFFECT, HOYA offer a choice of grades with different coatings as follows: Hoya standard filters offer both amateur and professional photographers HOYA's famous quality at reasonable prices. They have coatings applied to both surfaces to suppress reflection and increase light transmission. There are a few exceptions in the special effects range which, due to the special materials used in construction, do not have coatings applied.
Hoya HMC these popular filters are renowned for their ability to minimise reflection at the filter surfaces which reduces flare and ghosting. The result is an average light transmission of over 97%, giving sharp contrast and well balanced color. HOYA HMC camera filters are recommended for enhancing the performance of today's multicoated lenses.
Hoya Super HMC are outstanding camera filters offer revolutionary performance in light transmission and color balance. 12 layers of Super Multicoating are applied to the surfaces of the Skylight 1B and UV(0) models, which produces an average transmission of 99.7%! Coupled with maximum surface precision, this allows increased resistance to flare and stunning images can be recorded at wide apertures without compromising the performance of your lenses. Our ultra thin Circular Polarising filters have seven layers of Multicoating applied to their rear surface to eliminate internal reflections and ghosting. Advanced thin selective film is used to guarantee perfectly polarised light with neutral color balance. Their slim profile of just 5mm avoids any vignetting problems and makes them ideal for use with wide angle lenses. There is no front female thread, but they do accept our push-on lens caps. HOYA Super HMC filters will appeal to the most demanding of photographers who require the ultimate in performance.

Hoya Ultra Filters series use our new ULTRA thin rings which, like the Super PL-CIR filter, are designed primarily to avoid vignetting problems which occur with wide angle lenses. The ULTRA series filters use rings just 3mm in thickness, except for the hybrid UV/Polariser which has a 5mm rotating ring. HMC Multicoating is applied to both sides of the filters and they are supplied with our push-on lens caps. The Ultra ND filters use new Multi-Layer Coating technology to produce a neutral transmission curve which gives perfect color balance. We have also introduced hybrid filters in the ULTRA series, these combine the effect of two filters in one (i.e.: PL-CIR and UV together). This means that HOYA ULTRA series camera filters are the ultimate choice for wide angle camera lenses - there is no other filter available to exceed the ULTRA specification.
 As their names suggests, these filters use HOYA colored glass. They are used for color correction of different light sources when using color film, or for controlling contrast with Black & White film. Color correction filters are important as color films do not have the flexibility of the human eye to automatically adjust to different situations. Black & White films register colors as shades of grey and the rendition of each color in a scene is important, so filters can be used to control this. The color of the glass used in all these filters is carefully controlled and to reduce the possibility of color shift over a period of time, such high quality filters are coated or multicoated on both sides. This maintains the desired effect and gives a long service life.
 HOYA filters makes it possible to add many different special effects to your pictures, such as starbursts, close-ups, softening and multi-images. It is simple to achieve outstanding creative or unusual results and take special photographs for memorable occasions such as weddings, birthdays and holidays.
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