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tim53
sage
Reged: 12/17/04
Posts: 323
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Re: EM200 or NJP
07/15/08 05:45 PM
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I have an EM-10 for light stuff (moderately beefier than my Super Polaris), and an NJP for the heavy stuff.
Love both mounts.
I've never tried the EM-200, but it should be a good upgrade from the Atlas. You'll particularly like the accuracy of the Tak polar finders and their drives.
Both my mounts have the standard hand paddle, so they need a computer to run them. The Temma mounts come with Pegasus/Tracer 2000 software to goto with a PC. It works well but is pretty basic. Most people buy a third-party scope control software package. I have TheSky6 on my PC and EquinoX 6 and Voyager 4 for my Macs. I'd give the edge to TheSky6, though I'm a Mac person.
You can buy autoguider cables for SBIG to the Tak mount, but they're kind of expensive (over $100 IIRC). Alternatively, I use a Shoestring Astronomy GPUSB with a Firewire camera and Astro IIDC to guide using a Mac. The GPUSB and cable for the Tak is quite a bit cheaper than the other cable was for me, and it should work with a PC and other cameras/software. I don't recall the price I paid, though.
I've heard others run their Taks using PDAs, but I've not tried this (even though I have one). Tak makes a goto gizmo, but it's a few hundred additional bucks, IIRC.
The NJP is somewhat beefier than a CGE or G-11 mount. Possibly comparable to an MI-250 in load capacity and accuracy.
I use it to hold up to my 12.5" f/23 Cassegrain with teak plywood tube about 5' long, for planetary imaging. That's probably overdoing it slightly, though. The mount can handle a Casady triad bar, guidescope mount, three dovetail saddles, a C-8, 6" f/5 Jaegers, and Megrez 80mm fine. It also is way more than enough for my 6" f/10 Jaegers with a birdseye maple tube. I would think it would hold a C-14, which is about the weight of my Cass, but more compact.
Others may have more thoughts...
-Tim.
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"We`re just waiting looking skyward as the days come down.
Someone promised there`d be answers, if we stayed around."
-Orchestral Maneuvers in the Dark, "The Romance of the Telescope"
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