Your filter is almost certainly made to fit a 2 inch eyepiece barrel. It's not going to fit your reducer or your camera adapter. If you can tolerate the shift...
Thanks for the info Ed, My main problem was using a Vixen flipmirror. It's the stangest thing. The inner part of the flipmirror where it enters the back of...
Hi Ed, maybe if Steve had a Canon Rebel he could trade his filter for an Astronomik clip-in? Maybe he doesn't need a UHC at all? IMO Steve didn't provide...
Wow! That was condescending. Didn't think this group would be like this... Thanks for the info. Steve ... -- Steve Yerby Cell (802) 233-5134 [Non-text...
Depending upon the target and the nature of local sky glow, a UHC can be pretty useful in astrophotography as well as for visual. Not all of us are blessed...
Hi Ed, you are right, I apologize to Steve for asking him if he needed a UHC and for any perceived suggestion that he was uninformed. I was really trying to...
Richard and Ed, All is good on my end as well... Thanks to both of you. Now that the holidays are over I should be more on top of the posts. One thing that I...
Hi, last night I took a low resolution spectrograph spectrum of Venus. The detail of the imaging isn't terribly important to my observation. After taking a...
Hi I received my 2" Lumicon Ha filter and did two transmission tests. One test is from 190-950nm every 5nm, the other 550-700nm every 1nm. File Lumicon_Ha.xls...
Hi Richard C, ~$100 for the 2". IMO this would be a nice filter for new imagers interested in learning the benefits of Ha imaging. Regards, Richard M ... ...
it is the first "ha" filter I used..... It carried me for nearly two years.... ... From: ssb73q To: Astroimaging_filters@yahoogroups.com Sent: Thursday,...
Hello all I am going to purchase a new set of LRGB filters. I believe back in May there was a post on the Baader filters. Has anybody else used these, and...
Hi John, I keep toying with getting a set, they appear to have the best specs (cost value) of any color imaging set being sold. However, I wish that Baader...
Hi, does anyone have experience with Methane Filters like http://www.gerdneumann.net/v2/deutsch/methan_filter.html (sorry, seems not to be available in...
A related but slightly different topic is what camera do you intend to use this filter? Methane is in the NIR and many sensors have difficulty imaging in NIR....
Hi Dieter, notice that the "Methane" filter you referenced has a pretty wide bandpass, 80nm. There are some reasonably priced NIR longpass filters that I had...
Hi Richard ... One can find methane emission line just in the NIR (= ~ 1-3 um). But one can find methane absorbtion lines already in the visual range at 544...
Hi Richard, thanks, quite interesting. I'm planning to use a Canon 30D. It should work in the filter range. We'll try to take some Jupiter atmosphere pictures....
Hi Dieter, I forgot to mention that my Canon 350d has been modified. The internal UV/IR cut filter was replaced with clear glass. I'm not sure, but I suspect...
Hi Richard, that's what I figured. By the way there is an interesting comparison on the 40D and 50d at: http://www.astrosurf.com/~buil/50d/test.htm Christian...
Filter guru's. I was hoping for your help and a bit of a shortcut. I have been doing mostly visual observing for some time now, or planetary imaging with my...
... Kevin I believe there's software that will do the calculations for you. You can image a G2V star then use the software to calculate the proper ratio. I...
I'm new but I don't see anyone else jumping in here so I'll give it my best. If anyone can make my answers better or if anyone sees an error, please jump...
Hi, I haven't been posting here much lately since getting involved in spectroscopy. I can currently do low resolution spectroscopy to better than ~15A...
the guy that used to say that 3nm is bad and 6nm is good is now selling something he calls 3nm and has no explanation why his position changed how about...
Hi, I have been doing some spectroscopy on ngc7009. I have seen references where there is significant NII emission from this planetary nebula, see: ...
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