View Full Version here: : Ngc5139
16-05-2012, 11:43 AM
Still in the learning phase with all of my gear and processing.
This was taken with the following:
OrangeBright 2" LRGB filters
AstroTech 2" Flattener
Lum 1x1 Bin / 5 seconds (20 stacks)
RGB 2x2 Bin / 5 seconds (12 stacks)
Pretty happy with the result as I was struggling with over exposing the stars. I was trying to do 5 minute exposures, where as with the stars, seconds worked much better than minutes.
16-05-2012, 08:55 PM
Nice photo Sam.
17-05-2012, 09:23 PM
Keep working at it! This is no doubt a challenging, but rewarding hobby. Your tracking looks pretty good, and that's really important. You didn’t mention if you calibrated your image with flats, darks, bias frames?
19-05-2012, 05:21 PM
Thanks for the comments guys.
Steve, yes, I did calibrate with flats, darks and bias frames. One of the rare times I actually remembered to get those extra files.
The photo was processed purely with StarTools v1.2beta following Ivo's 'recommended processing workflow'.
21-05-2012, 09:07 PM
Redid NGC5139 with 10 second subs instead of the 5 second subs originally.
I like the detail in this much more.
Lum 1x1 19 stacks @ 10 seconds
RGB 2x2 19 stacks @ 10 seconds
21-05-2012, 11:41 PM
Pretty good job for such short subs. Well done.
There does seem to be a bit of a green caste to the overall image. try dialing green in color balance back just a tad and you star colors will pop more and background will look blacker.
22-05-2012, 11:41 AM
Thanks for that, I did notice the green cast but I wasn't sure how to proceed. Will give that I try :)
22-05-2012, 01:52 PM
Super sharp. Nice. :thumbsup:
22-05-2012, 04:11 PM
As cventer mentioned, the second attempt had a green cast to it.
I believe this third attempt has taken care of this :)
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