Hi Guys, It is well known (meaning I personally know more than ten imagers that have had this problem and it is regularly discussed on several imaging forums) that the blue and green filters cause

Roland, the SBIG filters are from Custom Scientific I believe. I get very strong halos from my green Astrodon. I had thought it was due to the fast f-ratio I was shooting with the scope I've had till

Roland: Thanks for the clarification. Kent ************************************** See what's free at http://www.aol.com.

stuart.j.heggie@... writes: I have an older SBIG ST10E which has very strong multiple reflections form the green filter and fainter ones from the blue. These filters have no coatings on

kgkirkley@... writes: I have been testing the Baader filters for the last week under all kinds of sky conditions. I do not see any halos around any bright stars. My H-a images are very sharp

Roland: I responded to your post, with wonderment, some days ago where you mentioned that Astrodon filters caused halos. And, now you say the Baader filter(s?) do not cause any halos. This is the

peturnielsen@... writes: I use the Baader 2" filter now. It does not cause any halos. Rolando ************************************** See what's free at http://www.aol.com.

Dear Group, With Cygnus slowly getting into good position for imaging, there is a wide variety of goodies it provides for the interested observer and imager. Given the plethora of Barnard dark

Rick, If you want a right-angle adapter try L-com #DG090MF1 or #DG090MF2. See them at www.L-com.com. Norm the power to are about Integrated

do all H-alpha filters cause halo (i'm looking to buy one and was thinking about getting the astrodon). what h-alpha filter would you recommend ? Peter $--- In ap-gto@...,

Bluetooth sounds good, too. What is the range for bluetooth? Will it go thirty feet and through a window? Then I can keep the computer inside. Rick

Harold, No, it's a program my friend wrote. I'll post more on it when I get his permission. My understanding is that it sends alt and az commands. Would it be more accurate if it sent RA and

Hi, I vote against WLAN in the mount. Users who want it can get 3rd party serial bluetooth adapter. Let's not waste Roland's time and effort on something that user can do themselves vs the stuff that

Dear Group, Thanks to pristine weather conditions on Monday, I had the privilege and thrill of observing and imaging my second occultation during the past three years involving two of the three

with? to out. Then Rick are you planning to use Satellite Tracker or some other program and please post the results when you try it out.

Hi Steve, Just got off the phone with L-com. I was hoping for solderable connectors so that I could modify my cables but these should work out ok. Rick. Behalf Of "David B. about

You don't mention if this is for visual or astrophotography. If its for visual the Losmandy DC11 that Gilles recommended will be fine. I had one mounted on a 600GTO and it was very stable. Dan

If the error is consistent as you indicate, then it's probably misalignment of the optical and mechanical axes of the C-14. An alternative approach is to use adjustable tube rings (the kind with the

Eric, Thanks for the reply. I think you're right. I haven't quantified the amount of error but, since shimming, it's small. When the object is centered in the C-14 FOV (narrow) it is in the outer

Joe, Wow, that's exactly the answer I was looking for. Where else can one get such good advice? I'll get some of those covers. Thanks, Rick