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: Filter—B+W 103 0.9 ND, 3-stop neutral density Page 8: Filter—Hoya HMC Super UV 0 (clear) Page 9: Filter—B+W 091 Deep Red Page 10: Filter—B+W 092 Infrared Pass Page 11: Filter—B+W 093 Infrared Pass Page 12: Filter—Hoya R72 Infrared Pass Page 13: Filter—B+W 486 UV-IR Cut Page 14: Filter—B+W 486 Infrared Cut Page 15: Filter—Baader Venus Ultraviolet Cut Page 16: Filter—Kenko DR655 Infrared Cut Page 17: Filter—B+W 403 Ultraviolet Pass Page 18: Filter—Baader Venus Ultraviolet Pass Page 19: Filter—Baader Venus II Ultraviolet Pass Page 20: Filter—XNite BPG 750nm Infrared Bandpass Page 21: Filter—XNite BPG 830nm Infrared Bandpass Page 22: Filter—XNite BPG 950nm Infrared Bandpass

Filters: Kenko IR block filter DR-655

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 — Kenko IR block filter DR-655

See the Japanese language specification page describing this interference type filter. The spectral transmission curve suggests that color rendition might offer some irregularities.

The loss of blue (400-420nm) is substantial, and its uneven spectral transmission is not desirable. However, it cuts infrared off sharply at 650nm.

Compare to the B+W 486.