Horse Head Nebula – Sony IMX224

Horse Head Nebula. 242×20 sec @ 1834 Gain, RT Sony IMX224, Televue TV-85 at F/5.6, SharpCap 2.9.

More EAA fun with the Sony IMX224-based camera.  This was taken during the nightime of Dec 12/13, 2017.  The final version here has over 80 minutes of data.  It was acquired in a high LP environment with no filters on the camera except for the UV/IR cutoff.

I need to get a UHC filter for it, but as you can see, I might do good to use none just to get the base colors and use the UHC just for extra nebulosity, only.

M51 Spiral Galaxy – Sony IMX224

M51 Spiral Galaxy on 12/13/2017. 81×20 sec @ 1832 Gain, Rising Tech Sony IMX224, Televue TV-85, SharpCap 2.9.

Here’s an object I’ve been itching to shoot with the RT IMX224 cam.   This is only 27 minutes worth of 20 sec exposures!    🙂

I think that between 500 and 1000 subs would really be what this object needs with this setup.     In the meantime, I put the above image together with 25 minutes of DSLR camera data taken with the same scope.   Check it out:

M51 – 27 minutes IMX224 and 25 minutes with a DSLR (at a dark site) combined.

The Dumbbell Nebula – Sony IMX224

M27, The Dumbbell Nebula. 97×8 sec @ Gain 2098, RT IMX224, TV-85 at F/5.6, Sharpcap 2.9.

I rushed to setup and shoot this one before it went behind a tree.  It was only 97 frames at 8 seconds for a total of about 13 minutes.   But, I love  how it turned out with this Sony IMX224 camera.  It looks as good as or better than most of my DSLR shots of the same object.

It looks even better if I combine the two cameras’ datasets into one image to get the best of both:

M27 IMX224 data combined with 48 minutes (24×120 sec @ ISO 1600) of DSLR data taken with the same telescope.

Owl Nebula – Sony IMX224

The Owl Nebula. 5×300 sec @ 100 Gain, RT Sony IMX224, Televue TV-85 at F/5.6, Sharpcap 2.9.

I tried long exposures with no gain and no darks using the Rising Tech Sony IMX224 eyepiece/guider cam to image the Owl Nebula, recently.  I was using it like I would one of my Canon DSLR cameras with long exposures at low ISO when shooting in bad LP conditions.

Hot pixels were worse than I thought, so I had to do some aggressive noise reduction.   Next time, I will definitely use darks based on this experience.  The camera has low read noise, but not low hot pixels with exposures this long.

Images of Comets, Nebulae, Galaxies and Star Clusters