B+W 55mm 489 Infrared Glass Filter
This B&W 55mm Infrared Blocking Glass Filter must not be confused with heat-resisting protection filters for projectors or spotlights. Instead, it is intended for use as protection for IR-sensitive CCD sensors or in the light path of illumination devices with low thermal characteristics.
- It suppresses infrared radiation >780 nm
- Because it gradually begins to absorb infrared radiation at 600 nm, long wave red light is slightly weakened so that this filter has a subtle green tint; But, in CCD applications, this can be readily corrected electronically
| Type | Infrared |
| Size | 55mm |
| Grade | 489 |
| Filter Factor | 1.2 |
| Multi-Coated | Not Applicable |
| Rotating | Not Applicable |
| Effect | Suppresses IR radiation >780 nm |
| Application | Protector for IR-sensitive CCD sensors |
| Color Temperature | Not Applicable |
| Construction | Schott Glass |
| Front Filter Thread Size | 55mm |
| Front Lens Cap Size | 55mm |
REVIEW SNAPSHOT®
by PowerReviews(based on 1 review)
Ratings Distribution
REVIEWS
Reviewed by 1 customer
Displaying review 1
Pros
- Corrects IR contamination
- Doesn't cause cyan drift
- No need for Cornerfix
- No need for lens coding
Cons
- Not multicoated
Best Uses
- 12mm CV Leica M8 82
Comments about B+W 55mm 489 Infrared Glass Filter:
Normally you want to use a Leica-brand or B+W 486 or Heliopan Digital filter with a Leica M8, but with the Voigtlander 12mm the cyan corner vignetting is a problem. There's no substitute lens code that takes care of it, and Cornerfix is an extra step in post. The 489 does not cause cyan corner vignetting, although it doesn't correct the IR contamination quite as well, it's good enough for the limited use of the lens. The only thing that could be better about this filter is if it were multicoated. In fact all B+W (and Leica) UV/IR filters should be multicoated but they aren't. Heliopan are.
Displaying review 1
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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