No, I bought one on EBay and it didn't have the word Lumicon etched into the metal ring. That was what made me suspicious. Others have posted on this and other...
Hi Ed, I beg to disagree with the current employees of Lumicon, a company that was bought out from the original owner, Dr. Marling whose day job in the 1980's...
Craigs observations are correct. I have a 67mm minus violet filter I purchased in 1986 directly from Lumicon. No markings on the metal ring, not even a...
Folks, I have just spoken again with "Mike," who identifies himself as the General Manager of Lumicon International. Here is what he has to say. Much of the...
Dear Ed... The historical Lumicon info you gleaned looks very complete and should prove useful to others evaluating older filters. Thanks for posting the...
This was funny. Obviously spam, but "close" to being on topic Lol. With the money I have invested in astro gear I was tempted to check out the site. It's odd...
When I see these 'helpful' messages, I get a mental image of a wild chimp slamming a keyboard to get his ID. No rational chimp would use such daffy ID's Dennis...
I wouldn't worry too much. Spam like this comes in waves, then quickly dies out. The spam spawning robots move onto other targets. Also Yahoo's counter-robots...
Hi, a newbie here.. I 'm in the process of picking up a used Sac-8 II cam and figure eventually i'm going to need a set of filters for it. Apparently it seems...
I would recommend astronomik or astrodon. The former are superb value, the latter are considered best by some but much more expensive. Clear skies, Kevin ... ...
Hutech makes a 8nm halpha filter that "drops into" the canon DSLR. I'm thinking of trying it out. I'm presuming this is an IDAS/Kenko Halpha (seems to have the...
Hi Jeff, have a look at the Astronomik filters. We do have a 13nm FWHM H-Alpha filter and we will ship our new 6nm FWHM H-Alpha in the mid of june. As far as I...
Dear Jeff, I own IDAS LPS and Kenko 64 but do not have a modified EOS DSLR to try out the Ha imaging. According to my rough calculation using their ...
Yes, this combination does work well. E.g.... http://pk.darkhorizons.org/haidas.htm Fwiw, I have the hutech 8nm "front filter" in the camera now. (And I'm...
Jeff, just caught your note. The 1.25" Astrodon as of late gives you 90-92% at 6 nm FWHM and is off-centered so you don't lose much with faster optics. We...
Does anyone know of a supplier in the US that sells empty 1.25" filter sets. By this I mean the 1.25" filter cell and the small ring that is used to screw into...
Hi Roger,, we do sell our ASTRONOMIK cell also just as empty cells. You should contact AVA, they should have them in stock. If you want, I can also send them...
Thanks Gerd, I sent an email to Adirondack Video Astronomy and asked them for a price for ten. I would buy them from you but I don't know how expensive the...
Hi Roger, ... Oh that´s no problem. DHL works worldwide, and as the cells are quite thin I could ship them as a letter. I think it costs about EUR 8,- ... ...
Hi. I've been doing some basic RGB imaging for a while using simple dyed glass filters and now want to move up to a set of dichroic filters. To help me choose...
I'd recommend AR coating if you can get it. it will help on star reflections in many cases. I have no information on the best filters for your application...
Adrian, I make the Astrodon imaging filters. Building upon what Richard said, you should choose A/R coating to minimize reflections within your optical system...
Hi Adrian, ... We do have a lot of customers who use our ASTRONOMIK filters with great sucsess with their webcams. ... If you go ahead for interfernce filters...
... a. ... you ... I was hoping Don would comment on this. One thing I should add about the parfocality of the filters: if the scope is a mirror based scope ...
... you ... very thin ... made. ... requested ... the glass ... hi Gerd, I have some custom scientific narrowband (3nm FWHM) emission line filters ([SII], Ha,...
Hi Gerd; thank you for the information about Astronomik filters. (BTW I already have an Astronomik H-alpha filter and like it very much!) I'm very interested...
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