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We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
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B+W 37mm KR12 Color Conversion Glass Filter
This B&W 37mm KR12 Reddish-Brown Color Conversion Glass filter allows the use of a tungsten-balanced film in daylight without a strong blue cast. It effectively absorbs the excess of daylight blue that is otherwise superimposed on all the colors.
But, the KR12 filter is not only useful as a "savior in cases of need", or for making good use of an otherwise useless remnant of film, because it can also be used effectively for overcoming extreme contrasts that are greater than a daylight reversal film can handle. A reversal film balanced for tungsten light has a flatter gradation curve, adding a possible high contrast control.
Note! Whereas the 85 series is used for tungsten film under daylight conditions, use the 80 series of filters when using daylight film under tungsten lighting
85 Series Color Conversion Chart
- An 85 decreases the color temperature from 5500-3400° Kelvin
- An 85A decreases the color temperature from 5500-3100° Kelvin
- An 85B decreases the color temperature from 5500-3200° Kelvin
- An 85C decreases the color temperature from 5500-3800° Kelvin
| Type | Color Conversion |
| Size | 37mm |
| Grade | KR 12 (85) |
| Filter Factor | 2 (+1 stop) (approx) |
| Multi-Coated | No |
| Rotating | No |
| Effect | Removes excessive blue from images and produces more natural colors |
| Application | When pleasing color balance is desired when shooting with tungsten film outdoors |
| Color Temperature | Decreases the color temperature from 5500-3400° Kelvin |
| Construction | Schott Glass |
| Front Filter Thread Size | 37 mm |
| Front Lens Cap Size | 37 mm |
Filter pouch
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- Original: $9.95
- Save: $0.99
- Price: $8.96
Care & Cleaning
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- Original: $4.99
- Save: $0.50
- Price: $4.49
What's in the Box
- Ten-Year Warranty
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