|
Hi Marc,
Specific cameras need to be programmed into software to handle the RAWs. I doubt CCDstack is programmed for any DSLR but it might be for a couple of Canon models. CCDstack isn't ideal for DSLRs, Images Plus is the one.
CCDstack seems to have poor memory management and colour images become unwieldy to handle, they become huge files and the computer starts going really slow. Images Plus does not do that.
So check Images Plus to see if it supports Pentax Ist D or shoot in Tiff if it doesn't. I am pretty sure Images Plus supports Pentax 1st D.
Take 30 x 1minutes and have noise reduction on or take some darks at the same temperature and subtract them in Images Plus.
A couple of other points - 1 minute is too short an exposure as you have a lot of noise and horizontal banding in the images. Try 5 minutes or even 10 minutes.
Also you seem to have some vignetting going on. Is there something obstructing the view of the scope/camera?
You need to also learn to do flats as you have dust donuts showing as well. Flats will get rid of these and most of the vignetting.
Simply put a white T-shirt over the end of your scope and take a few images with short exposures at dusk or dawn.
Greg.
|