Infrared Digital Camera

Hello to all,

I saw an ad about a Canon EOS 20D digital camera, the ad states:

"It has been modified/converted to an infrared (IR) digital camera by a professional. The hot mirror (IR blocking filter) inside this camera was removed and replaced by an IR filter (with 700nm Cut-Off at 50% transmission rate). It has been re-calibrated to ensure the autofocus system works properly after conversion."

Can this modified camera be used for astrophotography?

Thanks in advance and clear skies,

Junn
Riyadh, Saudi Arabia

Not for general purpose astrophotography.

It's filter passes *only* IR, not any visible light.
Another side effect of this modification is that it effectively is B&W
only, at IR wavelength all pixels have about the same sensitivity.

For astro you'd most likely want to convert it again and put
a visible light + Ha (very deep red light) filter in there.

Michael