Welcome to our new group. I hope this will become a valuable asset for all of the imagers in our club. Steve...
2
Rich Richins
badsocref
Jan 31, 2007 9:12 pm
Hello astroimagers! When I image from my backyard, I tend to get light pollution gradients (even though I'm using a light pollution filter). Since gradient...
3
csterlin88001
Jan 31, 2007 10:03 pm
I'll see if I can do something similar in GIMP. I've a few shots with similar gradients that I had given up on... Chuck ... desired....
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George Hatfield
iron_genny
Feb 1, 2007 5:26 am
Here ya go.... Before....Just an adjustment to levels and curves to bring out the nebula a bit. After 1...selected out nebula and applied GXT medium/medium,...
5
George Hatfield
iron_genny
Feb 1, 2007 5:29 am
Opps....meant to send this to Rich only. This is a demo of GradientXTerminator. George ... nebula a bit. ... adjusted curves and levels. ... applied GXT...
6
Steve Barkes
nm_astrnmr
Feb 1, 2007 5:59 am
George, I'm glad you cleared that up. I was thinking I was supposed to know what GXT was ;-) BTW rr, what are the double donuts? Steve _____ From:...
7
Rich Richins
badsocref
Feb 1, 2007 6:08 am
George, Best I can figure, the donuts are lens flares from Alnitak. I shot more images with a dew shield and the donuts were much less obvious. I'm not sure...
8
Steve Barkes
nm_astrnmr
Feb 1, 2007 6:11 pm
I haven't had a lot of time to play with my Meade 416XTE CCD camera except indoors. I did manage to get a few images of M82 a couple of weeks ago. Attached is...
9
bob@...
melkor43
Feb 1, 2007 8:45 pm
I could be wrong, but that doesn't look like cold pixels to me. It looks more like something is stuck on the sensor. You could try doing a 10min dark frame and...
10
Steve Barkes
nm_astrnmr
Feb 1, 2007 9:05 pm
If that's the case I'll take the camera apart and clean the sensor. I looked at it but didn't see anything. I'll look again with some magnification. I could...
11
bob@...
melkor43
Feb 1, 2007 9:27 pm
It would be hard to see. I count a max of 9x10 pixels @ 9um that makes a very small spot. As far as the desiccant goes, I don't see any evidence of frost, but...
12
Steve Barkes
nm_astrnmr
Feb 1, 2007 9:44 pm
I'm not sure when mine was last baked. I've been running it at -20c and don't have any frost problems. But to clean the CCD I have to open the case breaking...
13
bob@...
melkor43
Feb 1, 2007 9:56 pm
Definitely if you have to break the seal (I should have thought about that), but it may just be on the windows outer surface. -20c is what I run my camera at,...
14
Steve Barkes
nm_astrnmr
Feb 1, 2007 10:29 pm
I been thinking that a good topic for our March Imagers Corner would be a discussion of TSP. Since we have new imagers attending this year, the old-hats can...
15
bob@...
melkor43
Feb 1, 2007 10:34 pm
Never having been to TSP (or any other major star party) it sounds like a good idea to me. Bob.... ... From: Steve Barkes To: ASLC_Imagers@yahoogroups.com ...
16
csterlin@...
csterlin88001
Feb 1, 2007 11:41 pm
Sure. I have a knack for finding things out the hard way... Chuck...
17
Jerry Gaber
jerrygaber
Feb 2, 2007 12:37 am
I to have never been to a major star party and would look forward to any sharing of experience that may make the TSP a better experience with as many avoided...
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Dave Dockery
dave_dockery
Feb 2, 2007 3:07 am
Hmmm. I'm not sure a cleaning is going to do anything for that. Normally you'll see light diffracting around dust specs so that it's more like a shadowy...
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Dave Dockery
dave_dockery
Feb 2, 2007 3:10 am
Cool tip, Rich! Thanks for sharing it. I don't understand how the background is so uniform afterwards but it certainly does work. Guess I need to read up on...
20
Dave Dockery
dave_dockery
Feb 2, 2007 4:10 am
Great idea, Steve! ... From: ASLC_Imagers@yahoogroups.com [mailto:ASLC_Imagers@yahoogroups.com]On Behalf Of Steve Barkes Sent: Thursday, February 01, 2007 3:27...
21
bob@...
melkor43
Feb 3, 2007 2:17 am
Greetings All, I thought it might be a good idea to create some tutorials of various image processing techniques and post them to the files section of the new...
22
Steve Barkes
nm_astrnmr
Feb 3, 2007 2:30 am
Bob, I converted the file to PDF and sent it to you directly. It's down to 1.15mb so you can upload to the site. Steve _____ From:...
23
ASLC_Imagers@yahoogro...
Feb 3, 2007 2:41 am
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the ASLC_Imagers group. File :...
24
bob@...
melkor43
Feb 3, 2007 3:37 am
Thanks Steve. I'm sending it now. What do you think of the idea of building a library of tutorials? Bob.... ... From: Steve Barkes To:...
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Steve Barkes
nm_astrnmr
Feb 3, 2007 3:43 am
Sound like a great idea to me. Steve _____ From: ASLC_Imagers@yahoogroups.com [mailto:ASLC_Imagers@yahoogroups.com] On Behalf Of bob@... Sent:...
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Steve Smith
steve220us
Feb 3, 2007 2:34 pm
Thanks Bob and Steve! That is an excellent inaugaral article. Steve ... building a library of tutorials? ... down to 1.15mb so you can upload to the site. ......
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Jerry Gaber
jerrygaber
Feb 3, 2007 5:45 pm
This is an excellent example of how we can share our ideas and experience so all can benefit. Great job presenting very Useful Information. Way to go Bob and...
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Dave Dockery
dave_dockery
Feb 3, 2007 6:12 pm
Bob, Great article! Thanks for putting it together and uploading it to kick off the library. I really like the library idea, BTW. Dave ... From:...
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bob@...
melkor43
Feb 4, 2007 2:03 am
Thanks for the kind reviews. I would be nice to build a large resource library. Bob.......
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Jerry Gaber
jerrygaber
Feb 4, 2007 7:30 pm
My Canon 350 XT should be here tomorrow. I have the Adapter ring and 2" adapter to physically connect it to the Telescope. Will I need any electronic...
