Hi folks, 180:120:180 S2:Ha:O3 TEC140 ST-10 http://www.chapaccd.com/deepsky/n281.html In case you aren't on SBIG group... Mike Chapa http://www.chapaccd.com...
Thanks to all for your nice comments. I used: SII = Red, Ha = Green and OIII = Blue: the wavelength ordered palette. Currently, no bigger image available, but...
Beautiful result Mike. I like the rich color and the deep blues. Nice detail as well. Mike ... Mike Chapa <mjchapa@...> wrote: Hi folks, 180:120:180...
Imaging last night was a bit frustrating with seeing conditions greatly reduced by the Santa Ana winds -- coming in at 4 to 5 arc sec :-( When I woke up to...
Very tough imaging conditions Jose. Glad you could pull out that nice wide-field image. Mike ... Jose Ribeiro <joseribeiro@...> wrote: Greetings all, ...
it looks really great zoomed out but at closeup you can see that the seeing really zapped you Mike. The scope looks to be performing well. When we get the...
I did a quickie measure of the flange to film shutter distance (nearly at the film plane) in my Pentax 6x7 camera this AM before leaving for work. I measured...
Very nice Mike A nice smooth blend of the colors and wonderful detail. Clear skies, Kevin Dixon www.kevindixon.westhost.com From: Mike Chapa Hi folks, ...
Thanks Michael, Richard et al...Richard I used the Astronomy tools suite for PS to create the diffraction spikes. These tools are available from Noel Carboni. ...
Excellent wide field Veil image Peter! And quite deep to boot. Gotta love the FOV. I also tried an entire Veil image with my 135mm pentax takumar lens which...
Hi all, Another Veil image. Taken with a Pentax takumar 135mm lens stopped to f4.5. Ha, OIII and synthetic green frame made from the Ha and OIII stacks....
it looks cool Jon out of curiousity why synthesize a green channel? if you want to only use Ha and [OIII] and want to approximate true color (that's an...
OK, Apparently, my eyes were falling asleep late last night when I posted my pacman "Hubble palette" shot. I've redone it. Here's what I did differently: 1....
Way way better Mike! rdc ... From: "Mike Chapa" <mjchapa@...> To: <narrowbandimaging@yahoogroups.com> Sent: Tuesday, November 01, 2005 9:32 PM Subject:...
A significant improvement Mike. The colors are much richer! Clear skies, Kevin Dixon www.kevindixon.westhost.com From: Mike Chapa OK, Apparently, my eyes were...
I liked the previous one Mike, but your revised version seems to have brought more faint detail, with better color contrast. Nice work! Mike ... Mike Chapa...
Hi folks, Richard asked me to check whether using a sythetic lum actually helped. Upon close inspection, no, it really did not. The data is the data and...
That looks very nice. It's impressive to see the difference in the number of stars with the wider Astronomik filter bandwidths compared to my less ambitious...
Hi Peter, Thanks for your comments. Definately alot more stars shine through with the Astronomk filters. They are nearly double the bandwidth of most others....
Hi Richard, The reason I combined the color this way is really out of simplicity more than anything else. This technique is just an easy way to produce a...
i have observed the same phenomena with the 6nm astrodons too when compared to the 3nm cust sci. i realize this isn't politically correct to discuss publicly...
to first order all you need to do to try it is to swap your green and blue channels my issue is that there is no hydrogen in the green part of the spectrum but...
I had once done a comparison between an Astronomik Ha (13nm) and Custom Scientific Ha (3nm) filter in order to decide which to use for a California nebula...
Peter, Nice compare, but like you said, different detectors and different processing. I'm sure you'll give us the imaging data on these. Another thing I've...
that is entirely consistent with my results Paul. When the sky is bright for whatever reason, the results are better with the 3nm CS than with the 6nm AD. It...
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