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Guide to Infrared
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Articles Table of Contents   Page 1: Filters for Protection, Polarization, Infrared and Ultraviolet Page 2: Tips for Buying Filters Page 3: Do Filters Degrade Image Quality? Page 4: Color balance of UV filters. Page 5: Neutral Density Filters Page 6: Filter—B+W UV 010 UV (clear) Page 7: Zeiss UV Filter Page 8: Zeiss Circular Polarizer Page 9: Filter—B+W 103 0.9 ND, 3-stop neutral density Page 10: Filter—Hoya HMC Super UV 0 (clear) Page 11: Filter—B+W 091 Deep Red Page 12: Filter—B+W 092 Infrared Pass Page 13: Filter—B+W 093 Infrared Pass Page 14: Filter—Hoya R72 Infrared Pass Page 15: Filter—B+W 486 UV-IR Cut Interfence Filter Page 16: Filter—B+W 489 Infrared Cut Page 17: Filter—B+W 415 and 420 UV Cut Page 18: Filter—Baader Venus Ultraviolet Cut Page 19: Filter—Kenko DR655 Infrared Cut Page 20: Filter—B+W 403 Ultraviolet Pass Page 21: Filter—Baader Venus Ultraviolet Pass Page 22: Filter—Baader Venus II Ultraviolet Pass Page 23: Filter—XNite BPG 750nm Infrared Bandpass Page 24: Filter—XNite BPG 830nm Infrared Bandpass Page 25: Filter—XNite BPG 950nm Infrared Bandpass

Filter—B+W 489 Infrared Cut

Spectral transmission graphs on this page were measured by Coastal Optical Systems on their equipment using single samples of the specified filters. Graphs used by permission.

Graphs are in nanometers. Visible light is approximately 390 - 650 nm (the human eye can see very weakly into the 700-800nm range).

Buying filters

A great source for filters at competitive prices is our trusted sponsor, B&H Photo. Get filters at B&H Photo.

Spectral transmission — B+W 489 infrared cut

No so effective at blocking infrared, with a very gradual “tail” well into the infrared range, passing nearly 50% infrared at 700nm.

This leakage is enough infrared to cause a red shift on IR-sensitive cameras like the Nikon D2H. It also passes shorter wave ultraviolet almost unimpeded.

Get the B+W 489 filter at B&H Photo.