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...
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,...
Opps....meant to send this to Rich only. This is a demo of GradientXTerminator. George ... nebula a bit. ... adjusted curves and levels. ... applied GXT...
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...
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...
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...
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...
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...
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...
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,...
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...
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 ...
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...
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...
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...
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...
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...
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. ......
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...
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...
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