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Digital Setting Circles
What happened to digital setting circles? I haven't gotten my scope out in a long time (like four of five years and haven't read an astronomy magazine in that time too) but a couple of days ago I decided to get it out because of Mars. Well, tonight while looking thru Orion's site and astronomics site I don't see digital setting circles listed. Were did they go? Do they still make them or have they been surpassed? Also, why doesn't Orion have Celestron listed on their web site anymore? Did they stop carrying them? Not that I care much, I bought my Celestron from Astronomics. Just wondering. |
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"Von Fourche" wrote in
news What happened to digital setting circles? I haven't gotten my scope out in a long time (like four of five years and haven't read an astronomy magazine in that time too) but a couple of days ago I decided to get it out because of Mars. Well, tonight while looking thru Orion's site and astronomics site I don't see digital setting circles listed. Were did they go? Do they still make them or have they been surpassed? Also, why doesn't Orion have Celestron listed on their web site anymore? Did they stop carrying them? Not that I care much, I bought my Celestron from Astronomics. Just wondering. DSC's are still around AFAIK. I guess it is mainly the DOB makers that supply these as optional add ons to their scopes. Meade and Celestron have gone GOTO. Have a look at the Argo Navis DSC system that I think rxdesign sell in the states. http://www.rxdesignonline.com/ArgoNavis.html As far as Orion goes I heard they got rid of everything except Chinese stuff. I think even the Vixen products are now distributed by Televue in the US. Try sci.astro.amateur for more information. Llanzlan. |
#3
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"Von Fourche" wrote in message news What happened to digital setting circles? I haven't gotten my scope out in a long time (like four of five years and haven't read an astronomy magazine in that time too) but a couple of days ago I decided to get it out because of Mars. Well, tonight while looking thru Orion's site and astronomics site I don't see digital setting circles listed. Were did they go? Do they still make them or have they been surpassed? Also, why doesn't Orion have Celestron listed on their web site anymore? Did they stop carrying them? Not that I care much, I bought my Celestron from Astronomics. Just wondering. They still exist, but have become relatively 'specialist'. The problem is that to get good resolution with a DSC, requires a fairly expensive encoder. With a motor drive operating a worm gear, it is a lot cheaper to put a really basic 'mouse' encoder, closer to the motor, and then with the reduction gearing, you can get finer resolution for much less cost. This is the basis for all the cheap 'GoTo' telescopes. The GoTo systems, are seen as having more appeal, and since they can be built for less money, have tended to surplant the DSC's. Best Wishes |
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