Hello, I have a C8 at f/10 and an ST-9E. I use the Optec IFW, with their filters to make color CCD images. How do I know what ratios to use when combining the...
You can get help with exposure times for color here: www.astrodon.com Ron Wodaski The New CCD Astronomy http://www.newastro.com/ipb ... From: Elliott Brooks...
Hi , ... you can get all filters from astronomik in all sizes from 25mm up to 50mm diameter. Have a look at www.astronomik.com CS Gerd [Non-text portions of...
Hi, I noticed that Baader is offering a couple of new interesting filters. The first is a Venus filter (UV) and the other is an IR Pass filter. The UV is...
IMHO one should not chase IR-pass filters to improve on lunar/planetary resolution. The wavelength is twice that of yellow, consequently the diffraction limit...
Thier other new filter that looks interesting is the solar contiuum filter that enhances granulation and solar detail. Might be neat for WL filtered images...
Just a note on the physical appearance of the Baader UV and IR pass filters. I received my new Baader 1-1/4" UV (Venus) and IR pass filters today. The filters...
Hi Group, Just found this group and hoped you would not mind my joining in. I have just replaced the filters in my ST-2000XM with Don Goldmans filters. As I...
Look forward to you future impressions on them. Clear skies, Kevin ... pass ... seeing ... 10nm ... the ... <ssb73q@r...> ... interesting ... UV ... and ... ...
Hi Kevin, While just a subjective test on filters and the new Meade DSI I conducted an experiment were the results may find interest here. The DSI is a $300...
Hi Samir, The diffraction limit can be overcome by increasing aperture, unlike atmospheric seeing and chromatic refraction limitations. From where I observe...
Are you using a webcam? Only way to go these days, IMHO. At the last close approach of Mars I took a Hubble pic and simulated the diffraction-limited...
Hi Samir, Oh yes, I am definitely talking webcams - The fast frame rates make them difficult to beat for planets and rcent modification advances like raw mode...
I hope to soon. I have to get a couple things out of the way first, but I thought it could be a great addtion for baader solar filter viewing and imaging. ...
Hi, I received a Baader Continuum filter yesterday. The filter specification is 540nm. The Baader plot for this filter suggests 537- 8 as the transmission...
Great, let us know what you find. I this and a couple items on the way that will allow me to do some imaging. I am in process of upgrading mounts, and don't...
I just purchased a used True Technologies Filter Wheel and I can not get it to initialize. Does anyone here have any experience with it? Thanks, John San...
John: I use one with MaximDL/CCD and it has worked superbly for many years. ¿Which software are you using to control it? Regards, Eric. (México) ... not...
Hello Group I am new to this group so please bear with me. My question is regarding a 50.8/2" filter housing :- What is the thread on the end and is there a...
I assume you are asking about the standard astro 2" eyepiece filters. These have a 48mm thread, no clue regarding threads per inch, but any adapter that's for...
Forgot that haze. Even at the darkest site on Earth you will still get a nasty red haze in properly exposed deep sky photos. Before spending money on, eg IDAS...
I shot this odd view of M42 a few nights ago. It was a project I have wanted to do for some time. I used Near IR for red (825nm longpass), [SulfurII] for green...
Hi Kevin, I tried the Continuum filter out on the sun a few times. Like with most other filters, the result is an incremental improvement for solar observing,...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
