3 ms·

The wavelengths used by heat detection equipment are way longer than you'll pick up with a DSLR, even after a conversion to remove its IR-blocking filter.

• thwest 14y ago
  Yes, Silicon sensors are not photosensitive past ~900nm. The IR filter is only there to block "near infrared" 700-900nm which is not human visible but silicon sensitive.
  • rdl 14y ago
    How sad. I guess I'll be buying one of the $200 IR-Blue.