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Product Specifications: SV80ST2-25SV 80mm Apochromatic Triplet
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Description
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Options (extra cost)
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Objective
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80mm diameter, 480mm focal length (f6), apochromatic triplet with Ohara FPL-53 center element
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Tube Assembly
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Machined aluminum tube - instrument white outside, ultra flat black inside
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Dimensions
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The main tube is 3 9/16” in diameter. The complete telescope is 18 3/4” long with dew shield extended and 16” long when retracted.
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Weight
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The optical tube assembly weighs about 5.8 lbs. The dual rings weigh about 1.2 pounds total.
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Dewshield
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4 1/8” diameter fully retracting dewshield with cap
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Focuser
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2 1/2” dual speed Stellarvue rack and pinion focuser threaded for field flatteners, with compression ring and 1 1/4” compression ring adapter
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- Feather Touch UFFT25
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Finder
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Optional
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- Red Dot Finder F1001/F1001C
- Multi-retical Finder F2/F2A
- Optical Finder F50M2/R50A
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Rings
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Stellarvue R90SET precision hinged rings. Each ring has five 1/4-20 holes top and bottom with one in the center and two spaced 1.5” and 60mm apart. NOTE: The new precision main tube of the SV80ST2 is more than 3.5” in diameter and will not work with our R90C clamshell. Imagers prefer dual rings since they are more stable than a clamshell so we designed this telescope accordingly.
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Plate/Rail
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Optional
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- Vixen Rail TP14
- Losmandy Plate TP6
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Case
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Small hard case
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Diagonal
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Optional
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- Stellarvue 2” dielectric diagonal UD2
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Field Flattener
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Optional
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- SFF7-21
- SFF6-25 threaded
- SFF3-25 for large chips
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Light Gain
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131x (human eye = 1)
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Theoretical Resolution
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1.5 arc sec (Dawes Limit)
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