tornado33
17-07-2005, 10:23 PM
Hi all
In what would normally be a pointless exercise, I had a go at some deep sky imaging tonight, despite the 2/3 full moon.
http://scottalder.fotopic.net/p17614482.html
I used the Baader UHCS filter, and a 5 min ISO 1600, and then a 1/2 hour ISO 400shot, stacked in Photoshop, of this dumbell like planetary. No dark subtraction done, I dont seem to get noisy pixels when extracting the raw Canon images with photoshop CS, just the amp glow which can be cropped out for small objects like this or removed with Gradient Xterminator. I cant wait to try for this object again under moonless skies. I had a pretty good guidestar, wasn't too hard off axis hand guiding for a full 1/2 hour, but then the wind came up again, putting paid to any more shots of it or anything else tonight.
Kudos for Houghy mentioning the gas lift bar stools on sale at the Reject shop, I got one and its great for allowing me to guide whilst seated (much easier)
Scott
In what would normally be a pointless exercise, I had a go at some deep sky imaging tonight, despite the 2/3 full moon.
http://scottalder.fotopic.net/p17614482.html
I used the Baader UHCS filter, and a 5 min ISO 1600, and then a 1/2 hour ISO 400shot, stacked in Photoshop, of this dumbell like planetary. No dark subtraction done, I dont seem to get noisy pixels when extracting the raw Canon images with photoshop CS, just the amp glow which can be cropped out for small objects like this or removed with Gradient Xterminator. I cant wait to try for this object again under moonless skies. I had a pretty good guidestar, wasn't too hard off axis hand guiding for a full 1/2 hour, but then the wind came up again, putting paid to any more shots of it or anything else tonight.
Kudos for Houghy mentioning the gas lift bar stools on sale at the Reject shop, I got one and its great for allowing me to guide whilst seated (much easier)
Scott