I managed to get 4 hours on the Rosette last night with some decent guiding. I even solved an issue I have been having. During acquisition the last few times it appears that guiding and even tracking suddenly stops, I worked out last night that the mount had reached its Meridian limits and I needed to manually perform a meridian flip, problem solved.
I have also been working through many, many PI tutorials and have come up with an image I am actually quite happy with for a beginner.
48 x 5 minutes at iso 400
HEQ5 + WO Star 71 + Unmodded 550D
Very nice indeed, but use ISO 800. If I remember rightly that is the sweet spot for the 550D, and my 600D. Your image is very dark for subs of that length, even though you are using a small scope. Lightened up I think it would be a superb image.
raymo
Last edited by raymo; 02-01-2019 at 07:07 PM.
Reason: correction
Thanks Raymo, I'll give iso 800 a go next clear night out. I think the image is dark because I fell into the trap of clipping my blacks. How is this version?
Okay just had a look at ArcSinhStretch in PI and then some careful Curves, GradientXterminator and Levels, rinse and repeat a few times. Definitely pops a lot more now.
Nice clean image Paul !!
What do you use for acquisition , frame , focus and capture ?
If it’s clear tomorrow night ( south coast ) I’m going to try the Rosette for the first time
I’m using a Canon 600D unmodded in my 6” f6 newt and HEQ5 mount with PHD2 guiding
For acquisition, frame , focus and capture I use EQMOD, StellariumScope, Stellarium, BYEOS and PHD2
Anticipated Capture plan ISO 800 with 40 x 3 minute subs and 15 darks
Cheers
I personally like your second variation. I like the soft natural tones. We all have our own personal interpretations on the way we like to process. I wasn't overly fussed about going for rosette but seeing yours has made me want to give it a go. Thanks for the inspiration
Nice clean image Paul !!
What do you use for acquisition , frame , focus and capture ?
If it’s clear tomorrow night ( south coast ) I’m going to try the Rosette for the first time
I’m using a Canon 600D unmodded in my 6” f6 newt and HEQ5 mount with PHD2 guiding
For acquisition, frame , focus and capture I use EQMOD, StellariumScope, Stellarium, BYEOS and PHD2
Anticipated Capture plan ISO 800 with 40 x 3 minute subs and 15 darks
Cheers
Hi Martin, my setup is pretty well the same. Just switch out the newt, 600D and stellarium for a WO Star 71, 550D, Cartes de Ciel and AstroTortilla. I have also been working on a dark library with 32+ darks for these hotter temps.
Sorry for the hijack. People with frequently very expensive dedicated astro cameras probably don't like to hear it, but it is possible, given sufficient perseverance, and not a little talent, to produce images with a DSLR that are very fine, and almost indistinguishable from astro camera images. I remember that Sarah Wager used to produce stunning results in her early days of imaging with a DSLR, but unfortunately those early images don't seem to appear in her present gallery.
raymo
