Hutech Corporation sells a Canon 20D (Now Canon 30D and 5D) with the AA and IR blocking filters removed so the camera is more sensitive to H-alpha (656 nm) in emission nebula than a camera with the infrared cut off filter installed. The following are the first images shot with the camera from my backyard in a light polluted community.

Great Orion Nebula Exposure details in large image legend	Rosette Nebula Exposure details in large image legend	Comet Macholz C/2004/Q2 Exposure details in large image legend

With the IR blocking filter removed and with infrared filter (e.g., Hoya R72), the 20D camera is a great infrared camera for landscape photography. A small gallary follows if you click on the Snake River photo.

Grand Tetons and Snake River Canon 20D without IR filter with EF-S 17-85mm lens @ 17mm f/16 and Hoya R72 Filter Click on Photo for IR Gallery with the Hutech Modified 20D

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© 2004-2007, William L. Castleman
Posted 13 December 2004; Updated 18 January 2007