B+W 39mm 093 (87C) Infrared Glass Filter
This B&W 39mm 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 | 39mm |
| 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 | 39mm |
| Front Lens Cap Size | 39mm |
REVIEW SNAPSHOT®
by PowerReviews(based on 1 review)
Ratings Distribution
REVIEWS
Reviewed by 1 customer
Displaying review 1
Pros
- Clear Optics
- Firm Mount
- Strong Construction
Cons
Best Uses
- IR Photography
Comments about B+W 39mm 093 (87C) Infrared Glass Filter:
I use this filter on my 39 mm thread Leica lenses, particularly on the Leica M8. It transmits absolutely no light from the visible spectrum, so you have to use it on a very bright day or on a tripod. IR light has a bit of focus shift, so you should focus bracket when using this lens.
- Recommended:
- Leica M8, Leica Summicrom 50 mm f/2.0
Displaying review 1
Filter pouch
-
- 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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