Mark and Kevin: Since many years I have used for the Sun an Edmunds 520nm-10nm filter for white light imaging. I found that it really enhances granulation as...
I apologize to any/all who may receive the cross posts on the various lists, but we want to make sure we don't miss anyone who may find this of interest. ... ...
Hello all, After a bizarre private email exchange with someone on this list I was almost going to give up on this forum but I have decided to give it one more...
Hello Chaps, Finally after a long period of awayness ( curse you work ) I was lucky enough to be at home and have no moon and have clear skies all at the same...
Hi MW, Yes, the IDAS LPS filter sold by Hutech is a good filter against light pollution. I have used it in Mexico City light conditions and it does take away ...
Rainer, OK, thank you. Do you know if it upsets the color balance much? I guess that might be a funny question since my skies already destroy my color balance....
Hi Mark, It depends on the exposure time until you have a balanced RGB image. You will have to experiment what exposure times are the correct ones for your...
I have an IDAS that I have used in fairly LP skies and works well. I will try to post a couple images better than what I have handy. I have put in files...
Incredible image Eric. I actually just ran accross this image today when I was into the files section having missed this post (I don't get emails). What were...
OK, I'll chime in a bit. IMHO the steps to deal with light pollution should go as follows: 1. Determine how much light pollution you actually have. Sometimes ...
Hi all, I have successfully combined my narrow band shot of M33 - the Pinwheel galaxy with a normally exposed LRGB. Since many of you have Ha filters and know...
Thank you Samir, Kevin, and Rainer for the great information. Mark Samir Kharusi <samirkharusi@...> wrote: OK, I'll chime in a bit. IMHO the steps to...
we had our first major storm of the season on Thursday but by Friday it had blown through and the night was clear and cold. I definitely had to battle dew from...
Awesome as always. They both could use a bit more data but I'm sure you are already planning on it. ... From: rdcrisp To: Astroimaging_filters@yahoogroups.com ...
Hi, I am a newbee in this type of filters and would like to know into which channel of an RGB image I do copy the image I took with these filters. H-Alpha is...
Rainer, i use wavelength ordering normally when I use those three filters. that would assign [SII] to Red, Halpha to Green and [OIII] to Blue that is the same...
It's a matter of preference Rainer. In the image posted at the top of our page, it was SII, Ha, OIII as RGB. To my knowledge there is no wrong way. It is...
Hi Richard and Kevin, Thanks, but now I am a little bit confused about the ordering :-) After copying every image into the channels I guess you make an ...
no luminance used by me i only use the rgb palette, i don't use cmyk either ... From: Rainer To: Astroimaging_filters@yahoogroups.com Sent: Sunday, December...
I would stick with the 3, it's a false color image, so you can do whatever pleases you the most. But most of time SII is assigned for red, Ha for green, and...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Astroimaging_filters group. File :...
Astroimaging_filters@...
Dec 5, 2005 12:15 am
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Kevin: In the former message I posted AR-0826 taken the 2nd and the 3rd of this month. The sunspot complex changed a lot in 24 hours. As the other image, these...
IR-Pass filters could be the new breakthrough filters for photographing white-light astro objects like galaxies and star clusters in light-polluted skies. Woke...
Tonight I took some [OIII] to go with the Halpha I took last night in the Bubble area with the AP180EDT and IMG6303. I made a pseudo-RGB image by using Ha for...
These images are amazing. Imaginative use of only two color channels to create a tri-color image. Is this your own combination? Most informative. Jim ...
I've done that sort of two filter combinations in the past Jim For synthetic RGB on emission nebulae, much of the light is at Halpha, [OIII] and Hbeta...
Hi Richard, Great image and thank you for posting how you used the different filters in the different channels. With that sort of examples it is the possible...
Hi all, This is my first posting here. I operate out of Roseville, Ca. I have a 9x7 skyshed set up in my backyard, christened with the moniker of "shuttleview...
oh, i almost forgot...image specs: HA, 2700 secs x 6 frames, used for Luminance and Blue SII, 2700 secs x 6 frames, used for Red OIII, 2700 secs x 6 frames,...
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