The SVR90 is our top selling 90mm triplet apo refractor. It is 50% lighter than other 90mm triplets thanks to its Carbon Fiber tube. The 90mm f-7 apo triplet lens is made with FPL-53 optical glass. It’s light weight allows it to be mounted on smaller mounts and makes it an excellent travel or guide scope. This newest version now comes with Stellarvue’s own 2.5” dual speed, fully rotating visual/photographic focuser!
The SVR90T-25SV has a carbon fiber tube and dewshield, the Stellarvue 2.5” dual speed, fully rotating focuser with AP threads with 1.25” and 2” compression ring adapters. It has dual hinged rings and comes with a case.
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Product Specifications
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Objective Lens
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90 mm, 630 mm focal length apochromatic triplet objective with FPL-53 center element.
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Tube Assembly
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Carbon fiber tube. Objective lens assembly threaded to tube.
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Dewshield
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4.5" diameter retracting carbon fiber dewshield.
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Focuser
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2.5" Stellarvue visual/photographic dual speed, rack and pinion focuser with refractor brake, threaded drawtube, 1.25” and 2” compression ring adapters.
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Mounting Ring(s)
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Aluminum cnc machined R90set hinged rings. Five 1/4-20 threaded holes top and bottom that include a center hole and two sets of holes spaced 1.5” and 60 mm apart respectively. Use either the TP10 (Vixen style) rail or TP6 (Losmandy style) rail for mounting to the majority of mounts on the market.
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Dimensions
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3.5" diameter main tube and 4.5" diameter dewshield. OTA is 19 1/2" long with dewshield retracted and about 22" long when extended.
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Weight
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Optical tube only is only about 6.8 pounds. Rings weigh about 8 ounces each.
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Finder
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Optional, Recommended:
Red Dot Finder: F1001/F1001C
Multi Reticle Finder: F2/F2A
Optical Finder: F50M2/R50A
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Case
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C7 foam lined, airline carry-on case
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Light Gain
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165
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Color Correction 1-10
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10
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Contrast 1-10
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10
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