B+W 37mm 093 (87C) Infrared Glass Filter
This B&W 37mm 093 (87C) Infrared Glass Filter blocks the entire visible spectrum, so to our eyes it looks completely opaque. Unlike the B&W 092 infrared filter, it makes pure infrared photographs possible without the visible red component.
- Its transmission only begins to exceed 1% at 800 nm, rising to 88% at 900 nm, and remains that high far beyond the upper limit of sensitization covered by infrared films
- This filter is used less frequently in pictorial photography because of the dramatic loss of effective ISO
- In the scientific field, materials research and forensics, the limitation to a strictly infrared range is often important
| Type | Infrared |
| Size | 37mm |
| Grade | 093 = 87C |
| Filter Factor | Very dependent on the illumination and on the characteristics of the film |
| Multi-Coated | Not Applicable |
| Rotating | Not Applicable |
| Effect | Removes complete visible spectrum |
| Application | Forensic and scientific photography |
| Color Temperature | Not Specified by Manufacturer |
| Construction | Schott Glass |
| Front Filter Thread Size | 37mm |
| Front Lens Cap Size | 37mm |
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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