View Full Version here: : M31
oernulfs
06-12-2012, 08:43 PM
Captured with Skywatcher 80ED pro and QHY8L using a flattener, guided with C9.25 and starshoot autoguider on cgem mount. Stacked and processed in nebulosty and some processing in photoshop.
alpal
06-12-2012, 11:57 PM
That's quite good - & I'm sure you could make it
much better with some advanced processing.
oernulfs
07-12-2012, 12:31 AM
Thank's. The only thing I've done is to have played around with curves and levels. I've also used a tecnique using a copy-layer and high-pass filter to sharpen it. I'm quite lost when it comes to photoshop. Have you any hints about what can be done to make the image better?
alpal
07-12-2012, 07:06 AM
Yes but I can only find one right now.
https://www.youtube.com/watch?v=UZlpDFsugYk
Also - Atalas - a member here - called Louie - used to have a lot of training videos on the web but I can't find them anymore.
cheers
Alpal
oernulfs
07-12-2012, 06:37 PM
Thank you, I'll have a look at it and see if I can copy what it says. Again, thank you for good directions/advice :)
alpal
07-12-2012, 10:54 PM
No worries Rnulf - that guy "Doug" has other videos on Youtube too.
Star masks will stop you blowing out all the stars as white in colour.
I wish Louie would chime in - his videos are fantastic.
Ross G
08-12-2012, 05:02 PM
Hello Rnulf,
I love photos of M31.
Yours is very sharp with nice detail.
What were your exposure details?
Ross.
oernulfs
13-12-2012, 12:32 AM
Hi, Ross.
I used many exposures. They are 60s, 120s, 180s and 240s. I have approximately 30 minutes with each (i.e. 30x60s, 15x120s and so on).
I have stacked in nebulosity and used digital developement. That seems to prevent the core from beeing over exposed (burnt out).
Nice shot of M31 :thumbsup: I'm doing the same as you except for the longer exposure times (My HEQ5 controller failed so only could do short exposures this year) I use Nebulousity for stacking and stretching the image them use photoshop CS5, I find a useful tool in the menu Image-Adjustments-Shadows/Highlights. Tick 'Show more options' try using it after levels and curves. Hope this helps :)
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