B + W Filter Company 40.5mm Basic 093 Infrared Filter Black Red 830 camera filter

Infrared Photography Tool

The B+W 40.5mm Basic 093 Infrared Filter blocks the entire visible light spectrum, transmitting only the pure infrared range around 830 nm. It is built for photographers who want to explore experimental black-and-white imaging with a standard filter thread. The filter renders green foliage bright white and creates the distinctive wood effect with high contrast between clouds and sky. It is a new accessory for creative landscape and artistic work.

Build Integration

This filter screws onto any lens with a 40.5 mm front thread and requires no additional power or electronics. It frees the sensor from visible wavelengths, so exposures become much longer and a sturdy tripod plus remote release become essential. Focus must be set before the filter is attached because the optical path shifts in the infrared band. The round black frame adds minimal bulk and leaves the lens hood mount accessible on most barrels.

Ideal User

Suited for photographers who enjoy long-exposure, tripod-based workflows and want the surreal tonal reversal that only a true 830 nm cutoff delivers. Not suited for handheld snapshots, video work, or anyone expecting thermal-imaging performance. Buyers who need autofocus confirmation through the filter or who shoot mainly fast-action subjects should look at other creative tools.