Hi Don, Many thanks for the detailed reply, certainly a lot of information and lots to think about. I see your points about spending lots of money on a camera,...
I was impressed with Rick Krejci's recent M1 image he took with his new HX9V camera and CN212 Scope. One thing I always see with RGB or HaRGB images of the M1...
I had three clear nights in a row this past week to complete my data taking for my Thor's Helmet I started around New Year's Day. We've been pretty well...
Gday, Not being financialy flush, Im looking for cheaper ways out of buying neb/O|||/alpha etc. Would it be possible to trim down some Kodak Gel to fit in...
... buying ... EP's? ... Do you want to shoot film or CCD? How large of a sensor or film frame will you anticipate using? I ask because I have some references...
Hi Rick... Great image, despite your self induced criticism :) I have not been able to work on the IR/Methane/Ha/UV filter images that I had offered earlier....
... forcasters ... I understand the last part about the weather. I am having a hard time visualizing such cold weather.... Brrrrrrrrrr! Hey, I look forward to...
From the backyard on Friday and Saturday nights under a near-full moon: http://www.rdcrisp.darkhorizons.org/pk164_page.htm Al Kelly published an image of this...
Outstanding image Richard. I like the NII, Ha, OIII rendition the best. Shows alot of fine detail that none of the example images seemed to show. First I...
Hi Richard, Beautiful image. I've been looking at this one as well but the full moon has detered me. Your narrow band filters seem to be the way to go when...
... full ... to go ... Narrowband works great when the Moon is up. I try to shoot a dim nebula each month during the full moon just to keep making the point. ...
Here's a strange nebula in Orion: HH34, called by ESO "Nebular Region With Jets". http://www.rdcrisp.darkhorizons.org/herbig_haro_34_page.htm I finished this...
What are the pluses and minuses of the different varieties of H-Alpha filters? Are some better for viewing vs imaging? Does refractor type (APO vs achromat)...
Hello: I would like to know, which brand of filters do you recommend for Ha, OIII and SII. and what bandwith to use for best results. Regards, Eric. (México)...
I use Custom Scientific and have had excellent results. We now have about a dozen of these filters and all of them are excellent. Ron Wodaski The New CCD...
You can get them from many astronomy dealers, or from Custom Scientific directly. They do not have much of a web site - you may need to contact them directly....
Hi all, I am looking for an H-Alpha filter to fit a 52mm diameter lens thread. I already own Astronomik filters for 2" eyepieces but I cannot use a step-down...
Gday, Im sure you guys have had to answer this question a thousand times, but my view is that different filters no doubt fit different setups. IM a n00b to...
Eric, You might also want to check out Astomnomik. I learned from AVA they now have these filters in 1.25 and 48mm and I believe they are parfocal with the...
... do you intend to use it for CCD or for tech-pan? If you want to use CCD, then you need a narrow band halpha filter. For tech-pan, the longpass ones like...
Wallis and Provin cover this topic in their book on astro photography. It's been awhile since I have read the book, but I do remember their tests showed that...
Hi there ! You can also get our Astronomik H-Alpha Filter in a normal M52 cell upon request. Clear Skies Gerd Neumann www.gerd.neumann.net www.astronomik.com ...
An opportunity to photographic Jupiter next year was presented to me recently by the Executive Director of ALPO (the Association of Lunar and Planetary...
Hi Group, I have the Astronomik LRGB type 2 filters with built in IR. These filters are suppose to be parafocal and I find when using focusmax with robofocus I...
Hi Chris ! What kind of telescope do you use?? If you have any refracting elements in your system you MUST refocus with all filters. CS Gerd ... [Non-text...
It's fairly common for "parfocal" filters to not quite be exactly parfocal. The faster your focal ratio, the more likely this is. Ron Wodaski The New CCD...
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