M57 The Ring Nebula

3 x 300s Luminance + 2 x 100s each of RGB used for a quick test of the CFW-8 filter wheel modded to work via RS232. I used the AP 0.67 Reducer in the C9.25 rather than the Celestron 0.63 Reducer Corrector, it shows this scope has a reasonably well corrected field.

The luminance filter was a Baader Neodymium and wasn't parfocal with the RGB filters, I think this explains some elongated star shapes. No Flats/Darks or Bias frames used and only mild stretch and sharpening used in PS.

I'm surprised how his came out considering there is only 200s for each of the colours and no SC corrector used.

Rate this file (Current rating : 3 / 5 with 2 votes)
Rollover to rate this picture

File information
Filename:	M57-LRGB_P1.jpg
Album name:	RobertM / Nebulae
Rating (2 votes):
Link-words:	Messier / Nebula
Image date, time and location:	June 4th 2008 at 23:07
Telescope aperture and focal ratio:	C9.25 @ 0.67
Camera and filters used:	Starlight-Xpress SXV-H9 binned 1x1 Baader Neodymium + Astronomik RGB
Processing applied:	Stacked in Maxim DL V5 and mild curves and sharpening in PS
Filesize:	75 KiB
Date added:	Jul 13, 2008
Dimensions:	1392 x 1040 pixels
Displayed:	363 times
URL:	http://gallery.orpington-astronomy.org.uk/displayimage-535-_M57_The_Ring_Nebula_.html
Favorites:	Add to Favorites