C11 Hyperstar and QHY10 CCD

[Mosc_007 (Charles)]

Hello,

Before I bought a QHY10 CCD I converted my C11 to use the Hyperstar lens system. Changing from F10 to a super fast F2 means the exposure times on the OSC CCD are comparable to a DSLR at F10.

The Image of Horse and Flame has a Blue reflection inside the lense from Alnatak. I think the Collimation on the Hypertar is slightly off. Ignoring the Blue reflection it's a an ok Image.
The number of stars in the Field of Running Chicken is amazing.


These are my First Images with the Hyperstar and QHY10 CCD. Taken on 19/03/2015 at Linden NSW.

Rosette. 2 Subs at 30 Mins each. Flat + Bias Frames.
Horse and Flame. 24 Subs at 5 Mins each. Flat + Dark + Bias Frames. Slightly Cropped.
Running Chicken. 12 Subs at 5 Mins each. Flat + Dark + Bias Frames.
M83. 12 Subs at 5 Mins each. Flat + Dark + Bias Frames. Heavily Cropped.


Charles

[Rod771 (Rod)]

Nice start with the Hyperstar Charles.

Not sure you need to do 30 minute subs with OSC @ F2. You should get a nice deep stack with 120 x 1 min or 60 X 2 min subs with minimal noise and nice star colours in the integrated image.

M83 looks good with nice details considering how heavy the crop would be.

Cheers

Rod

[Mosc_007 (Charles)]

Originally Posted by Rod771

Nice start with the Hyperstar Charles.

Not sure you need to do 30 minute subs with OSC @ F2. You should get a nice deep stack with 120 x 1 min or 60 X 2 min subs with minimal noise and nice star colours in the integrated image.

M83 looks good with nice details considering how heavy the crop would be.

Cheers

Rod

Thanks for the comments. The 30 min subs on Rosette was way over board. Their was a Green Colour shift in the subs and I thought longer exposure would fix it. It actualy turned the correct colour after a white balance was applied. I am getting used to how little data is captured compared to the DSLR's I have been using. Its so easy to saturate the 1100d even with 5 min subs at F6.3. The CCD looks like their is nothing their untill its had the crap stretched out of it. I have one of Lagoon I did and thought their was nothing their. But after stretching it has good detail in it.

I was very happy with M83 considering how small it was at F2. I had to crop it to about 1/16th of the full frame. Its actualy better than when I did it with the stock 100d at F10.

I have a lot to learn about using a CCD. Its so much different to the DSLR.

Charles