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Formatt Hitech 4 x 4" Combination Color Conversion 85B/Graduated Neutral Density (ND) 0.6 Filter

B&H # FO85BGND6H44 Mfr # BF 485BHEND64
Usually ships in 2-4 weeks

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This item is usually Drop Shipped from the MFR/Distributor within 2-4 weeks (subject to availability). Your order will be charged at the time of placing the order with the MFR. Item is non-cancelable and non-returnable.
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You Pay: $193.50
Product Highlights
  • Hard Edge
  • Balances Tungsten to Daylight
  • Helps Balance Fore and Background
  • Allows Use of Fast Film in Bright Light
  • Helps Create Special Effect Blurs
  • Controls Depth of Field
  • Permits Use of Wider Apertures
  • Made to Highest Technical Standards
  • High-Quality Schott-Glass

Formatt 4 x 4" Combination 85B/Neutral Density (ND) 0.6 Filter - The 85 series will produce natural colors when shooting with tungsten film outdoors. Using tungsten film in daylight will produce a bluish cast in the photograph.

85B
What do you do when you must take some photos outdoors and all you have left is tungsten film? Using tungsten film in daylight will produce a bluish cast in the photograph. The 85 series of filters will "bring back", i.e. color balance the tones in your images. These yellow filters are used to correct differences in color temperature between the recording medium (film/video) and the light source.

An 85B filter converts tungsten film to daylight. An 85C produces the coolest results - more than either the 85 or 85B. However, it is interesting to remember that an 85C is also useful as a creative warming filter with daylight film in daylight.

Neutral Density
Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. ND filters appear grey and reduce the amount of light reaching the film. They have no effect on color balance.

Determining which graduated neutral density filter yields ideal results for any given lighting situation takes knowledge, experience and a collection of such filters. Choose the filter strength which adjusts the lighting to stay within the exposure latitude (greatest difference between bright/dark values) which still shows details in both of the digital or film medium in use.

Speaking generally, the 2-stop value (ND 0.6 - the filter's clear portion allows 4x more light to pass vs. darkest portion) effectively compensates average bright sky-to-foreground situations, and the soft transition is applicable more often to a scene than the hard transition

The Soft or Hard label indicates the degree of color graduation.

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.

Benefits

Optically consistent from filter to filter
Formatt filters use the finest materials together with state of the art production techniques; This has resulted in a standard of optical perfection unmatched anywhere else
All Formatt filters are manufactured using Water White Schott optical glass that is precision polished and ground to ensure absolute optical flatness and optimum performance

Absorbing Cell Technology

The secret to Formatt'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.
This process is revolutionary compared with conventional filter dying techniques by eliminating the need to directly coat the glass surface itself; The repeatable performance gained through A.C.T. ensures that at any time you have to swap like filters for like filters mid shoot you can do so with confidence with no discernable differences in color or density.
Each filter is guaranteed flatness to a maximum 2-wave value and comes with an individual reading from a laser interferometer; Every filter is carefully verified with a densitometer and spectrophotometer to ensure consistent and accurate transmission, before leaving the factory - the result is an absolute purity of image that eliminates any unwanted colorcast caused by conventional greenish soda-lime glass.

85 Series Conversion Chart

An 85 decreases the color temperature from 5500-3400K
An 85A decreases the color temperature from 5500-3100K
An 85B decreases the color temperature from 5500-3200K
An 85C decreases the color temperature from 5500-3800K

Neutral Density Factors

ND.3 (exposure adjustment = 1 stop, reduces ISO by 1/2)
ND.6 (exposure adjustment = 2 stops, reduces ISO by 1/4)
ND.9 (exposure adjustment = 3 stops, reduces ISO by 1/8)
ND 1.2 (exposure adjustment = 4 stops, reduces ISO by 1/16)
Type Combination Color Conversion 85B/Neutral Density Filter
Size 4 x 4" (100 x 100 mm), 4 mm thick
Hard Edge
Grade 0.6
Filter Factor
  • 85B = 1.8 (+2/3 stop)
  • ND 0.6 (2-stop, Reduces ISO by 1/4)
  • Multi-Coated Not Applicable
    Rotating Not Applicable
    Effect Balance light intensity and color from one part of a scene to another
    Application Nature, Travel, Outdoor photography; to maintain light control, as in bright contrasty landscapes; i.e. bright sky, dark foreground
    Color Temperature
  • 85B: Decreases the color temperature from 5500-3200K
  • ND: Has no effect on color balance
  • Construction Schott-Desag B270 Crown Optical Glass
    Front Filter Thread Size Not Applicable
    Front Lens Cap Size Not Applicable
    Formatt Hitech 4 x 4" Combination Color Conversion 85B/Graduated Neutral Density (ND) 0.6 Filter
  • One-Year Warranty
  • Care & Cleaning

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