Formatt Hitech Limited HT100NDB0.3 100x125MM ND Blender Filter 0.3 4-Inch x 5-Inch

Formatt Hitech Limited HT100NDB0.3 100x125MM ND Blender Filter 0.3 4-Inch x 5-Inch

: Formatt Hitech Limited HT100NDB0.3 100x125MM (4-Inch x 5-Inch) ND Blender Filter 0.3 : Camera Lens Black And White Contrast Filters : Electronics. Hitech filters are made from the highest quality 1.5mm optical resin. . The filter is also available in 85mm, 150mm and 165mm sizes. . A 100mm (4-Inch) x 150mm (6-Inch) version is also available for added flexibility. . Product Description Neutral density (or ND) filters produce a grey neutral tone and are used in photography to reduce light, enabling more control over exposure and depth of field without affecting color contrast. NDs are also available in blenders (sometimes called attenuators). These are similar to graduated filters but have no clear area, and there is a gradual transitions from the bottom of the filter to the top from a light density to heavier. This 100mm filter is usable with Hitech 100mm holder systems or any 100mm (4-Inch) holder. The 0.3 filter reduces light by 1 Stop. The filter is 100mm Wide but 125mm (5-Inch) long so that it can be moved up and down in the holder to line up the graduation line easily with the horizon. . From the Manufacturer About Formatt-Hitech Formatt-Hitech filters are designed and manufactured in the UK. Formatt-Hitech takes a scientific approach to light modification and designs filters using advanced spectrography to manufacture the most evenly balanced and well matched filters in the world. By using a spectrograph, Formatt-Hitech designs filters of varying density that modify light in the same way, just to varying degrees of intensity. So you can switch from a 0.3ND to a 1.2ND without changing the look of your project. Strict quality standards also mean that if you break a filter today, we can replace it tomorrow with a filter virtually identical across the frequency spectrum. So your 5 piece matched set of ND filters will always remain a matched set of filters, even if one should break and need replacing.. Technology Formatt-Hitech use our award winning and exclusive Absorbing Cell Technology process to dye the resin. The Absorbing Cell Technology process absorbs dye into each cell of the resin rather than coating onto it, ensuring that the affect is applied consistently across the filter. This means that each Formatt filter can be consistently replicated time after time. The densities and formulation of the dying process are strictly computer controlled, creating the most accurate filter reproduction in the world.. Materials Science Formatt-Hitech's resin was designed specifically for use as a lens material and has an index of refraction nearly identical to the finest optical glass. Formatt-Hitech's resin has the highest scratch resistance of any optical plastic and it is resistant to most solvents, chemicals, aging and material fatigue. Meaning that your resin filter investment will provide many years of good service. Formatt-Hitech's resin is completely transparent to the visible spectrum and opaque to ultraviolet light to eliminate UV contamination on your digital sensor.. Choosing a Filter System Using a filter holder rather than a circular screw-in filter allows you to make a single filter purchase that is used across a variety of lenses. 85mm filters are an excellent choice for small mirrorless camera systems such as Leica M and Micro Four Thirds systems, or DSLR users with small lenses. The 100mm system is an excellent all-round choice. 100mm filters are popular for DSLR photographers and DSLR cinematographers using larger, more expensive lenses. Typically, most solid filters are square. Graduated filters are rectangular to allow for vertical adjustment of the horizon.. . . . . . . . . .