... Hey John, If the newly launched Skywatcher Flextubes 'Auto's are an indication of the future direction Orion might be going...Remember Skywatcher is Orions...
... SkyWatcher is _not_ "Orion's sister company"! This rumour, which started on Cloudy Nights last year, keeps surfacing. Orion is owned by Imaginova, an...
FOR SALE: Slightly used XT-12 Classic. Mirror recently cleaned. Make an offer... No, no, just a joke. I may have misled by saying "Clean My Glass"; I always...
After starting with a SkyQuest XT4.5 and briefly having a SpaceProbe 130 EQ (the optical tube was recently stolen, but that's another story...) I'm wanting to...
After seeing the discussion of a review of a 6 inch f/8 Celestron refractor on ChTel, I wondered how much of a difference there is between the two for visual...
... I've owned both these tube assemblies, so can speak to the differences between them. ... The 150mm (actually both scopes are 150mm rather than 6-inches) ...
... I'm with you 100% on all of this. I think the manufacturers do the achromatic refractor a great disservice by making them in focal ratios whe they simply...
Geoff, I have a 152mm f/6.5 Antares 1529 achromat. Color correction on this scope is better than the typical 150mm f/8 Meade or Celestron imports. Scope weighs...
Sorry You are a week late identifying the scope. I claimed the honor last week by correctly identifying the scope. Wait a sec I don't think moderators are...
Clearly, I have been giving the Moon short shrift. I was thinking about some EQ-mounted DSLR-and-lens widefield photography, googling here and there, when I...
... This is another of my pet peeves with the manufacturers: tripod leg length. Most of the mounts sold today have legs too long to use with Newtonians and...
Because the factory cyan filter already there removes the frequencies in the deep red that you want to keep. Putting another filter ahead of the existing one...
Terry, A follow-on to my earlier reply. It is not critically important that you have the camera modified; you can take very good images with an unmodified...
In astrophotography, it seems I will need a guide scope to keep my tracking system on course for long exposures. What brand should I look for in a small guide...
I have recently tried to do some astro imaging. I own a CG5gt and a CG4 mount. The CG4 has the better round type tubular legs and I have added dual drives onto...
Would one be safe to say then in todays current market that the Orion 120mm f/8.3 Achro may be one of the better values in a Refractor considering its ability,...
... Here's an article I wrote a few years ago on achromats: http://www.gaherty.ca/rogers/achrefract.htm According to Conrady's stringent requirements, a 6"...
Geoff, I'm really looking for justification to use a reflector rather than to purchase a larger refractor. The 102mm f/8 refractor I have now is satisfactory,...
... If the reflector is well designed, i.e, with an appropriately small diagonal, you lose little in the way of contrast. Terry Dickinson did some experiments...
Enter your vote today! A new poll has been created for the orion-telescopes group: How many years have you been an Amateur Astronomer? o 0 - 5 o 5-15 o 15-25 ...
orion-telescopes@yaho...
Apr 7, 2009 1:20 am
7280
I don't know what gets into yahoo, and why those "o"s exist in front of the range choices on the previous message, automatically generated to announce the...
I still consider myself very new to the hobby of Amateur Astronomy. I'm now just a little over 18 months into this new hobby and I've found the hobby...
if you roughly figure the mirror equivalent to the area of a circle, then the light gathering difference for the 80 to 102mm is: 1.626. IMHO, if you want a...
Wow, Wayne, it's a good thing that there do not exist Astronomer Taverns and that you do not frequent them, or your nose would probably look a lot more...
... I've only once had a session ended prematurely by dew with a Newtonian, and that was with a truss tube. My closed tube Newtonians have never given me a...
I wrote a note last week about trying to get detail on an 8" Deep Space Explorer that I'd been looking at on Craigslist. I wound up buying it for $100. I've...
... This is one of my favourite achromatic refractors. It is reasonably compact and, while it still has strong chromatic aberration, it is not as intrusive as...
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