Quote:
Originally Posted by Shiraz
Hi Peter
Haven't tried it, but I think that multiple sessions of Maxim can be synchronised to enable dither with multiple cameras. http://www.youtube.com/watch?v=dmqxgDJBmX8
FWIW, I used to use 25 darks with my H694, but found that it needed a lot more - dark noise can be imprinted on the flats and that can lead to noise that does not reduce with extra exposure. With heavy LP, I would guess that at least 50 darks would be needed - maybe even more. I would also use maybe 100 bias and flats (33900 should be fine for the flats, but 52000 may just possibly be getting a bit close to the non-linear region of the CCD). If the LP is severe, you might even get some advantage from even more flats. Of course dither will fix most of the noise if you can get it going. |
Hi Ray,
Thanks for the MaxIm tip. I'll have a look.
OK, I see I will be spending a lot of time doing darks. I have not bothered doing any darks/flats for the Trius, only for the KAF8300 chip.
I'm going to need to redo my flats anyway as the camera is coming off for a good cleaning!
Thanks,
Peter