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Eq platform recommendation
When did you get your Type V? I got mine a few months ago, and it has worked
flawlessly with my 11" f/5.4 Starmaster. No vibration problem at all. -Astrosetz |
#2
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Eq platform recommendation
In article , David
wrote: Any recommendation for a suitable platform for a light 8" f7.5 Dob ? Thank you, David With my 10" f/5 I'm using a Osypowski Compact platform which I reviewed on CloudyNights.com. Absolutely zero vibration problems, even at a silly high magnification of 1000x (with my cooling fans on no less!). The wood construction is both solid and asthetically pleasing. Well worth the price. -- Jeff Morgan email: substitute mindspring for nospam |
#3
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Eq platform recommendation
"Astrosetz" wrote in
: When did you get your Type V? I got mine a few months ago, and it has worked flawlessly with my 11" f/5.4 Starmaster. No vibration problem at all. -Astrosetz I got it in March. Jon |
#4
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Eq platform recommendation
Jeff Morgan wrote in message ]...
In article , David wrote: Any recommendation for a suitable platform for a light 8" f7.5 Dob ? Thank you, David With my 10" f/5 I'm using a Osypowski Compact platform which I reviewed on CloudyNights.com. Absolutely zero vibration problems, even at a silly high magnification of 1000x (with my cooling fans on no less!). The wood construction is both solid and asthetically pleasing. Well worth the price. I'm going to re-post my original Equatorial Platform post from September 1998: "Friday night I picked up my new Compact Equatorial Platform at Tom Osypowski's home in Nevada City, Ca. I must say it looks like a work of art, beautifully finished...Saturday, I took it to Blue Canyon with my 18" dob - everything still fits in my Mazda 323 hatchback - and set it up. I set it up at sunset, so I could collimate, but of course, before Polaris was visible. It adds about four inches to the height of my telescope (seven inches, minus the three inches the prior base has), but that caused no problems. Shortly after dusk, I turned the motor on, found M57 and inserted a Speers-Waler 5-8 mm zoom eyepiece, providing about 250x at 8 mm. It was a delight to see how the ring remained in the field. Tracking was not perfect until I realigned the platform toward Polaris...then I zoomed to 400X, and when I saw that the tracking was working well, I added a 2x barlow...got to see the central star intermittently over a period of 10 minutes or so at 800x. Did not have to adjust the scope once during that time... That's the first time I saw the central star in M57 in my telescope. Without the platform, it's unlikely I would ever have seen it in my dob - another observer also saw the central star, more easily than I. I can't say enouggh about the platform - tracking is incredibly smooth. It's easy to set up. I need to adjust it every hour or so, so I just start it over with a pull on the edge when I move to another object. (My tracking time, before I need to reset, is shorter than most, because I asked Tom to make my platform as low as possible so that I could fit it in my car.) This is something everyone who owns a dob ought to have, a real equatorial mount. For "big dobs" I think this is a necessity, not a luxury. It lets you use your dob's capabilities - you can effectively use high power very easily. Thank you, Tom! Shneor Sherman" I still have the platform, which performs like a charm every time. I do carry a spare 9-volt battery, though. And I'm now using it with my 22" aluminum dob. IMO there's nothing better for a dob, barring a Bartels drive. Clear skies, Shneor Sherman |
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