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The 6.5 x 8" Graduated Cool Blue 1 Filter from Hitech allows you to add color or enhance the contrast of your image. This filter is made to the highest technical standards that deliver a filter that can be used with confidence. Tolerances are manufactured to such a high degree that similar filters can be exchanged from day to day without any trace of difference in the color. Hitech filters are 1.5 mm thick and do not bend like traditional resin filters. A Color Graduated filter generates the effect in the top part of the image while leaving the bottom clear. Traditionally, it is used to enhance skylines but its use can be varied to create many dramatic and moody effects.
This filter is available in a hard or soft edge variety. Hard edges contain a solid line between transition areas while a soft edge gently blends from top to bottom. It should be noted that many additional effects can be created by using two graduated filters opposed to each other, i.e. one used upside down from the other.
The Grade 1 Graduated Cool Blue Filter brings a more intense blue to the image than Hitech's standard graduated blue filter. It will cool off a sky that is overly warm.
The Hitech filter system is made by Formatt - an English company that is renowned for its high manufacturing standards and consistency of quality. Their CR39 resin is manufactured in large sheets that are oven cured. Their exclusive Absorbing Cell Technology absorbs color as opposed to other filters that are coated. Once cured, they are sliced up to create individual filters. In this way, maximum consistency is maintained from filter to filter. This becomes crucial when you wish to change filters either mid shoot or from day to day.
Absorbing Cell Technology
The secret to Hitech's consistency in filter design lies in its unique "Absorbing Cell Technology" (A.C.T.); this unique process allows color correct dyes to be applied to optically pure, wafer thin absorbing cells and offers a controllability that ensures the smoothest grad lines and consistent color across the whole filter surface
Hitech filters are manufactured to exacting standards and can be counted on to be consistent filter to filter which means you can change filters mid shot or from day-to-day and still maintain the same exposure
Hitech filters are made by Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else
In the Box
Formatt Hitech 6.5 x 8" Graduated Cool Blue 1 Filter
Warranted Against Manufacturer's Defects
Table of Contents
6.5 x 8" / 165.0 x 203.0 mm
Not specified by manufacturer
Front Accessory Thread / Bayonet
0.05" / 1.5 mm
Color Temperature Effect
Formatt Hitech 6.5 x 8" Graduated Cool Blue 1 Filter Review