Cygnus Widefield

Comment

Comment by Marc Basti on May 12, 2012 at 6:51pm

Steve, thanks for the info. I knew sooner or later I would have to face the FWHM music-I was hoping somebody would come out w/a lens size Bahtinov mask lol. Marc

Comment by Steve Byrne on May 11, 2012 at 3:09pm

Marc, I use BackyardEOS for focus. Its kind of hard at 35mm, especially when doing it manually. I used Jupiter for that session. I just tweaked it until the FWHM was as low as possible. I would pick the brightest star available and see how it goes.

Comment by Marc Basti on May 11, 2012 at 9:25am

Steve, I'm looking at messing w/dslr widefields this summer, what do you use for focus? Marc

Comment by Russ Ruggles on May 11, 2012 at 8:21am

OK - thanks

Comment by Steve Byrne on May 11, 2012 at 7:14am

No, I start at minimum. If the histogram doesn't move at all, I'll use medium. I dont use max because it goes too far.

Comment by Russ Ruggles on May 11, 2012 at 7:11am

At Max strenght?

Comment by Steve Byrne on May 11, 2012 at 7:10am

I always run a pass of HLVG as well. Even if it doesn't appear to need it!

Comment by Russ Ruggles on May 11, 2012 at 6:59am

Well, it looks to me like you used the right methods in CS5.
I'm still a tad on the green side in PS so you're info is quite helpful.

Thanks.

Comment by Steve Byrne on May 11, 2012 at 6:55am

Thanks, Russ. I didn't do anything unusual for this. The red really wanted to pop, so I kind of took it easy on it.
In CS5, I used selective color adjustment to drop the cyan and yellow little in the red channel. I also changed to lab mode and bumped the black and white point up 10 in the A and B channels. If all else fails, sometimes I'll duplicate the layer and use the saturation blending mode, and do a slight curve by pulling down the dark end and pulling up the light end. Please excuse my lack of correct verbage! I noticed that when I use the match color option, it can destroy data pretty easily.

Comment by Russ Ruggles on May 11, 2012 at 5:41am

Very nice Steve. I didn't get nearly this much color with my modded 450d when I shot this last year. What did you do different in processing?