|
As with Jonathan, I stand corrected.
My understanding of Mallincam integration length was based on older information (about two years ago); and my understanding of the aperture required to obtain useful colour was based on the images presented on Rock Mallin's website.
If persons who have the camera are able to correct these misunderstandings then I am grateful.
I would however caution the unsuspecting user than a telescope which can track any celestial object for more than 12 hours must reside near either the north or south pole. At those latitudes, thermoelectric cooling is not required.
Integration times in excess of a few seconds require very good tracking or guiding ... i.e. a good mount. Times in excess of a few minutes also require some method of avoiding field rotation (i.e. equatorial mounting or a field rotator).
Regards,
Tony Barry
|