B+W 77mm 093 (87C) Infrared Glass Filter
This B&W 77mm 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 | 77mm |
| 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 | 77mm |
| Front Lens Cap Size | 77mm |
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by PowerReviews(based on 2 reviews)
Ratings Distribution
Reviewed by 2 customers
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Displaying reviews 1-2
Pros
- Strong Construction
Cons
Best Uses
Comments about B+W 77mm 093 (87C) Infrared Glass Filter:
Gives a pure IR look on my IR modified Sony A350, but exposure is about 1/30secs with F/8 and ISO 100 in bright sunlight. A device for the IR enthusiast.
Pros
- IR
Cons
- None
Best Uses
- IR photo
Comments about B+W 77mm 093 (87C) Infrared Glass Filter:
It works OK with my Canon 40D. Exposure time ca. 30 sek at ISO 400 in full daylight. You have to experiment. Focus before You attatch the filter an make correction for the IR wawes (focus at a closer distance than You actually see).
Displaying reviews 1-2
Filter pouch
-
- Original: $9.95
- Save: $0.99
- Price: $8.96
Care & Cleaning
-
- Original: $4.99
- Save: $0.50
- Price: $4.49
What's in the Box
- Ten-Year Warranty
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