I was originally going to post this in the K5 section of the forums, but considering this is more about the setup and such rather then the camera I added it here. The K5/II/IIs, K30 and such all have basically the same sensor anyhow. This is my first Astro image with the K5IIs outside of the city.
So let's start, often the most common question I get is what kinda camera/lens I'm using. So I'll include my setup as best as I can.
Imaging
Camera: Pentax K5IIs (previously used K5)
Telescope: Orion 8" Astrograph 8" F3.9 Newtonian.
8" f/3.9 Newtonian Astrograph Reflector Telescope | Orion Telescopes Guiding / Tracking
Mount: Skywatcher HEQ5 Pro. I had this mount with my old telescope before I did much imaging and incorporated into my imaging setup. When I bought a new scope I was tempted to get the 10" Newt, but because of weight issues I decided to aim under and save myself the $ on purchasing a new mount.
TELESCOPE SUPPLIERS - SKY-WATCHER TELESCOPE
Auto guider: I use Orion's "Magnificent Mini AutoGuider Package". I honestly not sure how such a small scope and the software can keep the stars so clean on a 800mm-1500mm scope but it works and that's the main part. The software used is PHD Guiding. It's free which is always nice. I believe it also came with the Autoguider package as well.
Auto Guider:
Orion Magnificent Mini AutoGuider Package | Orion Telescopes
PHD Guiding:
PHD Guiding Stacking Software
DeepSkyStacker is my primary image stacking software as it is free and it works well. However for this particular image I used PixInsight as I'm using the one month free trial and I have to say I quite like the program. the below image is without flats, and it removed the vignetting in basically a 2 step process. Either or are great programs. There are many more out there thou, and one of those may work for you as well.
DeepSkyStacker:
DeepSkyStacker - Free
PixInsight:
PixInsight — Pleiades Astrophoto Other
While I've yet to get into narrow band filter setups there are a couple accessories I do like to use.
Laser Collimator: I use Hotech 2"/1.25" SCA Laser Collimator, any will do to start tho. No matter how much I adjust the mirrors indoors, once I ride out of the city and its sitting in -15C or colder, it always needs readjustments due to contraction.
Hotech 2"/1.25" SCA Laser Collimator
Coma Corrector: Baader RCC1 Coma Corrector.
Baader Planetarium Rowe Coma Corrector - OPT Telescopes
Intervalometer: I've ordered this one but have yet to get it due to Christmas backorder. However this will help a bit as I won't have to stand outside in said -15C to -25C weather with the basic pentax wireless remote for each frame.
Don's Photo | Product no longer available[name]=H%C3%A4hnel-Giga-T-Pro-II-Wireless-Timer-Remote-Control-for-Canon-remote&catalog[product_guids][0]=823995
Here's a picture of the setup after a hour and a half before I took it apart due to clouds.
And the final result...well I'll probably tinker with the raw data for some time and see what I can push out of it.
Exposure Data:
4 x 480s Exposures
9 x 300s Exposures
Total 77 Minutes
No Flats/Darks/Bias