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4 ND FILTERS, THE PURPOSE OF THE FILTERS IS TO REDUCE THE AMOUNT OF LIGHT COMING INTO A SENSOR ALLOWING MORE CONTROL OF A CAMERAS APERTURE. PLASTIC OUTER COMPONENT WITH A GLASS INSERT.

POLARISING FILTER FOR USE WITH A DASH CAM. ATTACHES TO THE FRONT OF THE CAMERA USING 3M TAPE TO STICK TO THE FRONT OF THE LENS HOUSING, THERE IS ALSO A MECHANICAL LOCATING PART TO ENSURE THE FILTER IS LOCATED AND SEATED PROPERLY. THE FILTER ALTERS THE PASSAGE OF LIGHT TO REDUCE GLARE AND REFLECTION, THERE IS A METAL GAUZE WITHIN IT. IT IS MADE OF GLASS INCORPORATES METAL GAUZE. THE DIAMETER IS 22MM (OUTER HOUSING 24MM)

NEUTRAL DENSITY OPTICALLY WORKED FILTER FOR USE IN CINEMATOGRAPHIC VIDEO CAMERA. PRODUCT COMPRISES OF 4MM THICK GLASS CATED BY VACUUM DECOMPOSITION TO CREATE A NATURAL DENSITY FILTER, AVAILABLE IN TWO SIZES: 6.6 X 6.6 INCH AND 4 X 5.65 INCH. EACH SIZE FILTER IS AVAILABLE IN SEVEN DIFFERENT OPTICAL DENSITIES: 0.3 ABS, 0.6 ABS, 0.9 ABS, 1.2 ABS, 1.5 ABS, 1.8 ABS AND 2.1 ABS. EACH GLASS FILTER HAS A BLACK LACQUERED STAINLESS STEEL STRIP FRAME AROUND THE EDGES, WHICH CARRIES INFORMATION RELATED TO ITS OPTICAL DENSITY AND BRAND NAME. THE FILTERS ARE DESIGNED TO BE USED WITH CINEMATOGRAPHY VIDEO CAMERAS SO THAT EXPOSURE SETTINGS CAN BE VARIED.

A POLARISING FILTER IN THE FORM OF A CIRCULAR GLASS LENS HAVING A DIAMETER OF 105 MM. IT IS MOUNTED IN A SPECIAL RING THAT FITS TO THE FRONT OF A FILTER HOLDER, ALLOWING IT TO BE ROTATED INDEPENDENTLY OF ANY OTHER FILTERS IN THE HOLDER. IT CAN BE USED WITH BOTH DIGITAL AND FILM CAMERAS AND IS IDEALLY SUITED TO LANDSCAPE PHOTOGRAPHY.

MOUNTED OPTICAL FILTER.THE FILTER SELECTIVELY TRANSMITS LIGHT IN A PARTICULR RANGE OF WAVELENGTHS, THAT IS, COLOUR,WHILE BLOCKING THE REMAINDER. THE SIMPLE ALL GLASS STRUCTURE COMBINED WITH ION-BEAM-SPUTTERED HARD GLASS COATING MEANS IT IS VIRTUALLY IMPERVIOUS TO HUMIDITY AND TEMPERATURE INDUCED DEGRADATION.EACH FILTER HAS A STANDARD THICKNESS OF EITHER 3.5MM OR 5MM AND IS DEFINED BY THE FILTER'S ALUMINIUM HOUSING.