B + W Filter Company 37mm Basic 093 Infrared Filter Black Red 830 camera filter
37mm infrared filter transmitting only wavelengths beyond 830 nm for dramatic black-and-white contrast effects
- Blocks entire visible spectrum for pure infrared capture
- 830 nm cutoff enables dramatic black-and-white contrasts
- Green foliage renders bright white for wood effect
- 37 mm thread fits compatible lenses directly
- Not a thermal imager — works below 10,000 nm
37 mm Infrared Filter Purpose
The B+W 093 filter blocks the entire visible spectrum and transmits only infrared light above 830 nm. It is designed for photographers who want to create high-contrast black-and-white images with a dramatic wood effect on foliage and sky.
Extreme Contrast Image Results
The filter renders green leaves and grass in bright white tones while darkening skies for strong cloud separation. It exploits the camera's residual infrared sensitivity to produce experimental results that standard filters cannot achieve.
Threaded Mount Installation
The filter screws onto any lens with a 37 mm front thread and requires no additional tools. Exposure times increase significantly because the filter appears almost black, so a sturdy tripod and manual focus adjustment are usually necessary.
How it compares
Measured against everything we stock in Lens Filters & Polarizers, at today’s prices. Recalculated every night.
- Price $44.99
- Typical for this category: the median of 1,281 items is $48.99.
Specifications
No published specifications for this item yet.
Questions about this item
Does the 37mm thread on the 093 Infrared Filter ever need replacing?
The 37mm thread is cut into the filter ring and does not wear out under normal use; no replacement is required.
What limits the exposure length when using the 830 nm filter in bright daylight?
The 830 nm cut-off blocks virtually all visible light, so exposure times become very long and the practical limit is camera shake or sensor noise.
How much heat does the 093 filter add during all-day infrared shooting?
The filter is passive glass and adds no heat; any temperature rise comes from the camera body and ambient conditions.
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