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Holiday Closing
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.
We apologize for any inconvenience and appreciate your patronage.
B+W 72mm Infrared Dark Red 092 Filter
The B&W 72mm Infrared Dark Red (092 = 89B) Slim Filter is nearly opaque. It looks dark purplish/red when held in front of a light source and blocks visible light up to 650nm. It passes only 50% of the radiation just below 700nm (thus the dark red color).
B&W slim filters are for wide-angle lenses and are 3mm thick. They do not have a front thread.
- From 730 to 2000nm, transmission is greater than 90%; this makes photographs of pure red and infrared images possible with the best utilization of the relatively low sensitivity of infrared films
- As the sensitization of infrared black and white films barely extends beyond 1000 nm, the red portion that is transmitted still makes a relevant contribution to the exposure; that is why this filter is the preferred filter for pictorial photography on IR black and white film
| Type | Infrared |
| Size | 72mm |
| Grade | 092 (equivalent to an 89B filter) |
| Filter Factor | 20-40 depending on sensitivity of film |
| Multi-Coated | Not Applicable |
| Rotating | Not Applicable |
| Effect | Blocks visible light up to 650nm |
| Application | Infrared photography |
| Color Temperature | Not Specified by Manufacturer |
| Construction | Schott Glass |
| Front Filter Thread Size | Not Applicable |
| Front Lens Cap Size | Not Applicable |
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
- B&W Push-on Lens Cap
- Ten-Year Warranty
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