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MI Telescope Mount Specifications Basics Specifications Model Load Capacity Telescope Application Diameter of Axes Worm Gears Mount Weight** MI-500 German Equatorial 180 pounds, 82 Kg Equatorial Fork 120 pounds, 55 Kg 6 to 8 inch refractor, 12 to 16 inch Cassegrain or Newtonian RA: 100 mm (3.937 inch) Dec: 80 mm (2.953 inch) Aluminum RA*: 12.1 inch, 360 tooth, (Bronze RA optional) Aluminum Dec:10.1 inch, 300 tooth, 200 pounds*, 91 Kg 8 to 12 inch refractor, 16 to 20 inch Cassegrain or Newtonian RA: 130 mm (5.118 inch) Dec: 100 mm (3.937 inch) Aluminum RA*: 15.1 inch, 450 tooth, (Bronze RA optional) Aluminum Dec:12.1 inch, 360 tooth, 270 pounds*, 123 Kg 10 to 16 inch refractor, 18 to 24 inch Cassegrain or Newtonian RA: 160 mm (6.299 inch) Dec: 120 mm (4.724 inch) Bronze RA*: 20.1 inch, 640 tooth Aluminum Dec:1512 inch, 450 tooth 190 pounds, 86 Kg MI-750 German Equatorial 300 pounds, 136 Kg Equatorial Fork 180 pounds, 82 Kg 260 pounds, 118 Kg MI-1000 German Equatorial 480 pounds, 218 Kg Equatorial Fork 300 pounds, 136 Kg * Counter-weights not included 480 pounds*, 218 Kg 470 pounds, 214 Kg ** Weights are approximate German Declination Assembly Specifications German Model Upper Flange Diameter Length Counter-weight shaft Counter-weights* Declination Weight** MI-500G 7 inches 24 inches 1.5 diam. by 24 inches, 8 threads per inch 50 pounds, 18 Kg (2 weights) 90 pounds*, 36 Kg MI-750G 8 inches 30 inches 2.0 diam. by 24 inches, 8 threads per inch 75 pounds, 23 Kg (3 weights) 125 pounds*, 55 Kg MI-1000G 10 inches 40 inches 2.5 diam. by 24 inches, 8 threads per inch 100 pounds, 32 Kg (4 weights) 225 pounds*, 100 Kg * Variable depending on telescope weight http://www.mathis-instruments.com/specs.html (1 of 2)2/18/2011 9:34:25 AM ** Weights are approximate MI Telescope Mount Specifications Fork Specifications Fork Model Fork Flange Diameter Separation between Arms* Axes to bottom of Fork Overall Height Fork Weight** MI-500F 7 inches 14 to 20 inches 19 inches 25 inches 70 pounds, 36 Kg MI-750F 8 inches 18 to 28 inches 23 inches 30 inches 120 pounds, 55 Kg MI-1000F 10 inches 24 to 34 inches 30 inches 36 inches 220 pounds, 100 Kg * Machined to fit customer's optical tube assembly **Weights are approximate Polar Cone and Base Specifications Polar Cone and Base Base Diameter Azimuth Adjustment Altitude Adjustment Latitude Range* Height Weight** MI-500 10.5 inches 8 degrees 10 degrees 25 to 54 degrees 16 inches 100 pounds, 45 Kg MI-750 14 inches 8 degrees 8 degrees 25 to 54 degrees 21 inches 140 pounds, 64 Kg 15 x 21 inches 6 degrees 6 degrees 25 to 54 degrees 28 inches 240 pounds, 109 Kg MI-1000 * 20 to 60 degree range available as a special order Home Page Send E-mail Now Last Updated: January 8, 2011 © Copyright 2002-2011 Mathis-Instruments http://www.mathis-instruments.com/specs.html (2 of 2)2/18/2011 9:34:25 AM ** Weights are approximate