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Specifications and Features: Meade Starfinder™ | Dobsonian Telescopes | ||||
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| Starfinder | Starfinder | Starfinder | Starfinder |
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| Dobsonian 6 | Dobsonian 8 | Dobsonian 10 | Dobsonian 12.5 |
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Optical Design | Newtonian Reflector | Newtonian Reflector | Newtonian Reflector | Newtonian Reflector | |
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Diameter/Clear Aperture |
| 152mm (6") | 203mm (8") | 254mm (10") | 318mm (12.5") |
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Secondary Mirrors |
| fine annealed | fine annealed | fine annealed | fine annealed |
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Secondary Mirror Support |
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Focal Length |
| 1220mm | 1220mm | 1140mm | 1525mm |
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Focal Ratio |
| f/8 | f/6 | f/4.5 | f/4.8 |
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Resolving Power (arc secs.) |
| 0.74 | 0.56 | 0.45 | 0.36 |
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Limiting Visual Magnitude |
| 13.5 | 14.0 | 14.5 | 15.0 |
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Limiting Photographic Magnitude | 16.0 | 16.5 | 17.0 | 17.4 | |
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Image Scale |
| 1.18°/inch | 1.18°/inch | 1.26°/inch | 0.95°/inch |
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Maximum Practical Visual Power | 400X | 500X | 600X | 600X | |
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35mm Angular Film Coverage |
| 1.11° x 1.58° | 1.11° x 1.58° | 1.19° x 1.70° | 0.89° x 1.27° |
Optical Tube | 7.6" dia. x 48" long- |
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9.6" dia. x 48" long-
12.7" dia. x 45" long | 15.1" x 58" long |
Secondary Mirror Minor Axis | 1.18" | 1.83" | 2.37" | 2.60" |
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Secondary Mirror Obstruction | 3.9% | 3.6% | 5.6% | 4.3% |
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Dobsonian Mounting |
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Base Diameter | 13.75" | 17.1" | 22.2" | 26.75" |
Mount Dimensions (approx.) 12" square x 19" high | 16" square x 17" high | 21" square x 20" high | 25" square x 22 " high | |
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Bearings: Altitude | Nylon | Nylon | Nylon | Nylon |
Azimuth | Teflon | Teflon | Teflon | Teflon |
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Net Weights: Optical Tube | 20 lbs. | 26 lbs. | 30 lbs. | 55 lbs. |
Mounting | 14 lbs. | 18 lbs. | 32 lbs. | 41 lbs. |
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Shipping Weight (approx.) | 38 lbs. | 49 lbs. | 68 lbs. | 106 lbs |
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