I just wanted those on this list who do not sse the posts on the SBIG group to know that Stan Moore, one of the most respected names in quantitative...
Like some of us I am not a member of the SBIG group, and have not read these responses. I must confess I am missing the point somewhere. When I first read...
Tom, the problem is that Richard's CS H-a filter has 65-72% througput compared to 90% for the 6 nm FWHM narrowband and is thus considerably less efficient. It...
Don if you want anyone to take you seriously you should be able to fight your own fights instead of relying on standing on the shoulders of another person. You...
I made a short powerpoint presentation last week that attempts to teach the issue I raised about the importance of the resolution bandwidth of the instruments...
If you're going to attack the technical competence of a CalTech Ph.D. regarding spectal scans of filters, you might want to learn the difference between...
... Ph.D. ... Ph.D. ... i'd hope that you would have learned how to calculate s/n but apparently you haven't Don. Anyone can get a sheepskin but applying it is...
Gentleman? I'm not sure of the history of issues, but I'm certain there is more than meets the eye. If you are looking for attention, you've got it. If your...
This was actually flamed to death over on the SBIG group where it was told to stop. For some reason Goldman feels the need to come over here and continue the...
Michael, I'm one of 4 vendors that Richard Crisp is bashing that got him banned from the CCDNewAstro Yahoo Group, CCDList posting group and what lost him a...
it is funny that when people get asked hard questions they call it bashing. People trying to sell things often have a hard time facing the truth; tthey'd...
Mr. Crisp Enough! Stop this. Pat Learn from the turtle -- it only makes progress when it sticks out it's neck....
k6psc@...
Aug 3, 2005 3:35 pm
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... OK, I will. If I see another provocative posting saying I have been "discredited" by a fellow that will not even answer a straight and legitimate question,...
Hi all. I'm new to the group and this is my first post. A little bit of background babble (I'll try not to babble too much): As an avid astronomy fan since I...
This is to inform ALL users that personal attacks and questionable posts will not be tolerated. Violators will be banned and their posts deleted from the...
this should really separate the generations..... But that was the overwhelming thought that came to mind when I examined this 3.5 hours of halpha data I took...
Hi Everyone, I want to image Mars with my TouCam. What filters should I use? Has anyone tried the TeleVue Mars A and B or the Sirius Optics Planetary or...
this is one of those projects I don't expect to complete this season due to the current sky positon of the Cat's eye (NGC6543) Some time back I decided to...
I hope I didn't offend anybody with my humor (or lack of). Maybe my questions are too "newbe". Is there another group for beginners to ask filter questions? ...
Hi Jodi... I can offer a few suggestions. When running the camera in colour mode, an IR rejection filter will help to keep the colour balance from being biased...
Hi Jodi... I can offer a few suggestions. When running the camera in colour mode, an IR rejection filter will help to keep the colour balance from being biased...
Brian, thanks for posting this. I just learned about the NIR imaging of Mars from some people at Sky and Telescope. I like your work of blending NIR with RGB...
Hi Don... I have been using the IR 830nm cut on filter, but the 700nm one will provide a bit more light to work with. The IR provides great images of Mars,...
Thanks, Brian. The standard photometric I(s) filter in my Schuler UVBRI set is exactly that. It is a 700 nm cut-on filter that blocks all of the UV and VIS....
Hey all, If you have an Astronomik 1-1/4" Ha filter in either 14nm or 6nm sitting around, I'd like to buy it from you at a reasonable price. Payment via PayPal...
this is a faint one. It has taken a lot of nights to accumulate 13.5 hours of exposure but finally I got it finished last night. this is 7 x 30 minutes Halpha,...
the infamous Takkumar 150mm f/2.6 Pentax medium format lens has deployed again. This time it is IC1396 and is shot through halpha with the mighty FLI CM10XME....
last night i was able to capture [SII] to go with the halpha that I took on Sat and Sunday nights in IC1396 using the 150mm f/2.8 medium format Pentax Takkumar...
Mr. Moderator. As Ronald Reagan once said, "Here he goes again". I thought this was discussed earlier. First, let me say that this is a nice narrowband image....
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