Tag Archives: IR

Decoding a Midea Air Conditioner Remote

Last month, I purchased a 6000 BTU Midea window air conditioner (branded Arctic King WWK+06CR5) and thought it would be convenient if I could control it remotely. Doing so would involve decoding the remote’s IR signals; for this, I used a … Continue reading

Posted in | Tagged , , , , , | Leave a comment

West Hill Pond Near-Infrared Timelapse

Over the summer, I shot a timelapse of West Hill Pond in near-infrared using my modified Canon PowerShot SD400 and CHDK. The background music is from the Open Goldberg Variations. Enjoy! Also on Vimeo.

Posted in | Tagged , , , , , , | 2 Comments

Canon PowerShot SD400 Infrared Cut-off Filter Removal

Silicon, in the form of a digital camera image sensor, is sensitive to near-infrared light. However, digital cameras use a cut-off filter to block these wavelengths. Removing this filter makes the camera sensitive to near-infrared, and replacing it with a … Continue reading

Posted in , | Tagged , , , , , , , | 24 Comments