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Messages 1239 - 1275 of 2070   Oldest  |  < Older  |  Newer >  |  Newest
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1239
I have an SBIG ST2000ME (which only has about 25% QE at the Ha wavelength). I have the CFW-8 filter wheel with the standard SBIG LRGB filters. I am looking...
ancient.sull
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Jul 12, 2006
9:45 pm
1240
Did you mean the ST2000XM? That's the imager I use. I just started using the Astronomik 13nm Ha filter. I've tried several others but this one is the easiest...
Photon Collector
photoncollec...
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Jul 12, 2006
11:53 pm
1241
... the ... I've taken a lot of images using 3nm custom scientific narrowband filters on the following scopes/lenses: FSQ106 (f/5) FCT76 with reducer (f/4.2...
Richard Crisp
rdcrisp
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Jul 13, 2006
3:08 am
1242
Hi, I do have one small addition: Our latest Astronomik filters have 11,5nm FWHM instead of 13nm before. This offers you the same number of guiding stars and a...
Gerd Neumann
gneujr
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Jul 13, 2006
8:48 am
1243
Tried out a 12nm H-alpha filter at my home base and found it too wide for the light pollution I have. Awaiting a 6nm Astronomik filter that I expect will do a...
Samir Kharusi
samirkharusi
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Jul 13, 2006
1:03 pm
1244
Thanks. What is the thickness of your filters? (From what you said I assume your 11.5nm Ha, your LRGB and your other narrow band filters are all the same,...
ancient.sull
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Jul 13, 2006
4:11 pm
1245
Hi, all of our filters have a thickness of 1mm. All filters of the CCD line are parfocal. (Upon request we can also supply parfocal filters for systems as fast...
Gerd Neumann
gneujr
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Jul 14, 2006
7:34 am
1246
Just caught this thread. Since I just started imaging with a new Epsilon 180 I've just begun to image with all 3 6 nm Astrodons in an STL11000 at f/2.8....
Don Goldman
donclearview
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Jul 15, 2006
5:09 am
1247
Keith, I just remembered that you mentioned already having CS 50 mm 4.5 nm OIII and SII for your STL11000. I've been told, but have not tested this myself,...
Don Goldman
donclearview
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Jul 15, 2006
3:56 pm
1249
Don I am using the astrodon 6nm in my e180 too. Initial resuls are encouraging but I am still in the initial stages of deployment and have been sorting out...
Richard Crisp
rdcrisp
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Aug 2, 2006
7:33 pm
1250
We are excited about the upcoming ECCAI. All last minute details are coming together, and we are additionally pleased to announce that well over $4,000 in door...
Bob Benamati
bbenamati
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Aug 7, 2006
4:14 am
1251
Richard, the scope really does hold promise, but requires some work and patience, as we both found. First, one absolutely needs to attach an electronic...
Don Goldman
donclearview
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Aug 8, 2006
2:04 pm
1252
Greetings, I recently bought a used ST8-XE and CFW8-A. Included in the deal was an Astronomik Ha filter with the markings "Astronomik Profi Ha CCD 000372". Is...
melkor43
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Aug 10, 2006
3:23 am
1253
Hi Robert, ... This is one of our 13nm Filters. Have fun with it! CS Gerd www.astronomik.com www.gerd.neumann.net...
Gerd Neumann
gneujr
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Aug 10, 2006
6:44 am
1254
Hi there, I´ll be on a bike-trip across france for the coming three weeks. I will stop my membership of this group for this time. If anyone has a question ...
Gerd Neumann
gneujr
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Aug 20, 2006
11:01 am
1258
I recently obtained the Astrodon 6nm OIII and SII filters to accompany my Ha, which is also an Astrodon 6nm. The camera I use is a ST-2000XM. My first attempts...
Phil Jones
jediwebdude
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Sep 25, 2006
6:06 pm
1259
Hi, Phil, I can tell you what people are doing with the ST2000XM big brother, the STL11000XM on longer focal length scopes like 12 - 20" RCs or SCTs. Our...
Don Goldman
donclearview
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Sep 26, 2006
5:14 am
1261
Hi All, I was out trying to take LRGB/Ha images last night. What happend is that in the blue and green chanels had LARGE reflections around them. What is the...
astroimage2002
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Oct 8, 2006
5:36 pm
1262
My mirror seems to be flopping around more than it used to. I'm worried that the retaining ring may be coming loose. I'd like to pull the primary but I forgot...
Photon Collector
photoncollec...
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Oct 9, 2006
6:44 am
1263
If you don't get a reply here, perhaps you can visit the SCT users group. I know I read through a great proceedure once, but I did not save it. The gent had...
Kevin
kevinbm13
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Oct 10, 2006
2:42 am
1264
Thanks but I found just what I needed on the C-11 Group (go figure! LOL). ... From: Kevin To: Astroimaging_filters@yahoogroups.com Sent: Monday, October 09,...
Photon Collector
photoncollec...
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Oct 10, 2006
1:06 pm
1265
just discovered over the weekend and has been in a good number of images taken of IC1396 over the past few years, but apparently no one ever noticed it...
Richard Crisp
rdcrisp
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Oct 30, 2006
10:28 pm
1268
Good find! How did you happen to notice?...
galedy2
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Nov 3, 2006
11:20 am
1269
... Svengali attributes and magic :-) The hard way: stretch like hell to make everything show up and look over it carefully. when you see something that looks...
Richard Crisp
rdcrisp
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Nov 4, 2006
4:50 am
1270
Richard: Congratulations, Eric (México) ... one ... catalogs...
Eric Roel
eroelmx
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Nov 6, 2006
6:42 pm
1271
Thought I'd share "first light" with my very crude spectrograph; basicall a DSLR shooting into a shoebox with a slit at one end and a diffraction grating...
Samir Kharusi
samirkharusi
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Nov 19, 2006
7:17 pm
1272
Just a quick note to report on my preliminary experience with Don Goldman's MOAG-A (link to imaging train below), which allows for use of SBIG's remote guiding...
Mark Manner
mmanner
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Nov 22, 2006
5:17 am
1273
Thanks for the post Mark, interesting solution. I am surprised you need or benefit from AO guiding on your paramount. What is the with and without comparison...
Kevin
kevinbm13
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Nov 22, 2006
8:50 pm
1274
Hi Richard, your comment about when something looks odd it should be checked out got me wondering about some recent images I took of NGC253 using different...
ssb73q
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Nov 23, 2006
4:11 am
1275
Are you talking about the fuzz ball at the edge of the galaxy near the bright star? Here is an image I found on the net that shows it very well. ...
Photon Collector
photoncollec...
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Nov 23, 2006
5:03 am
Messages 1239 - 1275 of 2070   Oldest  |  < Older  |  Newer >  |  Newest
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