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Tecnosky SLD 130/900 V2 OTA Specs
| Brand | Tecnosky |
| Full Model Code | Tecnosky SLD 130/900 Version 2 Super-Low Dispersion Triplet Apochromatic Refractor Optical Tube Assembly |
| Country of Origin | Italy (Design) / Japan (Ohara Sourced Lens Glass Integration Layout) |
| Optical Design | Apochromatic Refractor (3-Element Air-Spaced Objective Triplet Layout with SLD glass component alignment) |
| Aperture | 130 mm (5.11 inches) |
| Focal Length | 900 mm |
| Focal Ratio | f/6.92 |
| Optical Coatings | Premium Ultra-Wideband Multi-Coated Broad-Band Layers on all glass boundaries |
| Glass Material | Premium Japanese Ohara FPL-53 Glass Element core housed inside an upgraded Version 2 highly stable structural cell |
| Secondary Mirror Obstruction | 0 mm (Unobstructed Optical Path Setup) |
| Secondary Mirror Obstruction by Diameter | 0% |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 0.89 Arcseconds (Dawes), 1.07 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 12.4 |
| Highest Useful Magnification | 260x |
| Lowest Useful Magnification | 19x |
| Optical Tube Material | Rigid Powder-Coated Aluminum Tube incorporating computer-optimized internal knife-edge light suppression baffles |
| Focuser Style & Mechanism | 3.7-inch Giant Rotatable Rack and Pinion Focuser Unit with 10:1 micro-reduction assembly and heavy structural payload capacity components |
| Mirror Lock Mechanism | No (Equipped with standard manual drawtube tension locks) |
| Optical Tube Dimensions | 142 mm x 790 mm (Tube Outer Diameter x Retracted Transport State Length) |
| Optical Tube Weight | 9.20 kg (20.28 lbs) (Bare Optical Tube Assembly with Ring Clamps) |
| Mount Attachment Type | CNC-Machined Tube Clamps coupled with a Precision Universal Vixen-Style Dovetail Mounting Plate Frame |
| Finder Scope Specification | Pre-drilled accessory mounting block configured for universal finder base attachment |
| Included Accessories | 130mm SLD Triplet Objective Unit, Retractable Dew Shield, 3.7-inch Giant Focuser, CNC Clamps, Vixen Dovetail, Carrying Handle |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Professional-grade deep-sky imaging and serious high-contrast planetary study, utilizing a large clear drawtube aperture to prevent vignetting across large imaging sensors. |
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