29 Dec
2009
29 Dec
'09
10:53 p.m.
Patrick wrote:
I'm wondering if anyone out there might be interested in working with me to use the Andy refractor out at SPOC next year to try some lunar and planetary imaging
Yes. For lunar imaging, think negative projection to f/25. f/5.5 and f/9 are too low. Use high speed video capture at 25 fps to catch the still air with an IR band-pass filter. For the C-14, consider stopping down - not for seeing, but to get the exposure time up if f/25 and the IR band-pass filter don't work. - Clear Skies, Kurt