IIRC, the last comparison I saw on the ATM list had Krylon brand ultraflat
black as the least reflective.

Clear Skies

Chuck Taylor
Do you observe the moon?
Try http://groups.yahoo.com/group/lunar-observing/

Are you interested in optics?
Try http://groups.yahoo.com/group/ATM_Optics_Software/

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"Jimcat" wrote in message
om...
Hi,

I am looking for a non-reflecting paint for the external aperture of a
telescope. I couldn't find something dark enough .

Any advice is appreciated.