RC Optical Systems - Mountain Instruments MI-250

Mountain Instruments MI-250...

The Mountain Instruments MI-250 is an excellent choice for 10 to 12.5 inch RCOS Ritchey-Chrétiens.

RCOS is an authorized Mountain Instruments dealer.

The Mountain Instruments (MI)-250 Go-To is a rock solid German equatorial mount that features the renowned precision of a Losmandy 7.5" RA drive and matching worm (custom made to Mountain Instrument's specifications) and the Losmandy Gemini System. This robust field mount was engineered and designed for SCT's, refractors, and Newtonians alike. For those requiring true versatility in an affordable package without sacrificing incredible stability, this is your mount.

The conical polar housing has been expertly cast in a #319 aluminum alloy and then painstakingly machined. Based in part on the Russell Porter designs, the polar shaft is also conical in shape for maximum stability. An internal slip clutch has been integrated for silky-smooth movement of the RA axis. The entire gear train, electronics, and bearings are internal.

Like the polar base, the declination axis features a conical shape offering total rigidity. Additionally, a Losmandy 7.5" gear and matching worm is utilized. The isolated counterweight shaft is independent of the declination shaft and is easily removed for transportation.

Fine tuning in altitude and azimuth are effortlessly performed without the need of tools! Micro-smooth adjustments in both axes. Positive ratchet type lock-down then secures both axis for trouble free use.

A custom pier can be ordered with the mount for field use or designed for permanent installation. For those with a Meade or Celestron field tripod, a convenient adapter plate can be supplied to secure the Model 250Go-To equatorial head.

The wear-resistant powder coated castings, with black anodized aluminum, flawless lines and fine craftsmanship, make it as beautiful to look at as it is to use. And the best for last...Timely delivery!

MI250 Specifications:

Polar Assembly

65-70 pound payload capacity (dependent on moment arm of OTA)
Easy 5 minute set up time
7.5" RA drive
Matching precision ground stainless steel worm
Conical shape for maximum rigidity
Conical polar axis
Major polar axis bearing-3.74" diameter
Variable friction slip clutch
Beautiful powder coated and black anodized finish
Redesigned altitude and azimuth adjustments!
Total RA (conical section) weight-36 pounds
Tripod adapter plate available

German Declination Assembly

Conical shape
7.5" RA drive
Matching precision ground stainless steel worm
Massive 3.74" major bearing
Easily secures onto polar base in less than 2 minutes
24 pounds total-. (not including c.w.'s or shaft)
Isolated and removable counter weight shaft
20 pound counter weight (2 ea)
Same attractive powder coated and anodized aluminum as polar base
Saddle plate includes Losmandy DA's -Accepts all Losmandy male dovetail plates
Easy access to RA clutch adjustments

Gemini Servo System Features Level 3

Detailed info can be found at http://www.docgoerlich.com/

PRICE:

For Pricing and Order Info, click here to see the Mountain Instruments Web Site.

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RC Optical Systems, Inc. An Arizona Corporation
1650 South Plaza Way, Suite 101, Flagstaff, AZ 86001, 928-526-5380
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