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Skywatcher MN 190/1000 Explorer DS Pro OTA Specs
| Brand | Sky-Watcher |
| Full Model Code | Sky-Watcher Explorer-190MN Pro Maksutov-Newtonian Astrograph Optical Tube Assembly |
| Country of Origin | China (Manufactured) |
| Optical Design | Maksutov-Newtonian (Spherical Primary Mirror combined with Front Meniscus Corrector Lens and Planar Secondary Mirror) |
| Aperture | 190 mm (7.48 inches) |
| Focal Length | 1000 mm |
| Focal Ratio | f/5.26 |
| Optical Coatings | High-Transmission Multi-Coated Meniscus Surface with Enhanced Aluminized Mirror Coatings |
| Glass Material | Premium Optical Borosilicate Glass Base with Crown Glass Meniscus Corrector Plate Elements |
| Secondary Mirror Obstruction | 50 mm |
| Secondary Mirror Obstruction by Diameter | 26.32% |
| Secondary Mirror Obstruction by Area | 6.93% |
| Resolving Power | 0.61 Arcseconds (Dawes), 0.73 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 13.5 |
| Highest Useful Magnification | 380x |
| Lowest Useful Magnification | 27x |
| Optical Tube Material | Roll-Formed Heavy-Gauge Steel Optical Tube Cylinder Finished in Gloss White Powder Coat |
| Focuser Style & Mechanism | 2-inch Dual-Speed Linear Power Focuser Assembly with 10:1 Micro-Focus Gear and Reinforced Drawtube Rails |
| Mirror Lock Mechanism | No (Equipped with standard manual spring-tensioned cell adjustment bolts) |
| Optical Tube Dimensions | 225 mm x 940 mm |
| Optical Tube Weight | 10.00 kg (22.05 lbs) |
| Mount Attachment Type | Cast Aluminum Support Tube Rings bolted to a Standard Medium Vixen-Style Dovetail Bar Interfacing |
| Finder Scope Specification | 9x50 Optical Straight-Through Finder Scope Kit Complete with O-Ring Alignment Bracket |
| Included Accessories | 190mm Maksutov-Newtonian OTA, Heavy-Duty Tube Rings, Vixen-Style Dovetail Plate, 2-inch Dual-Speed Focuser, 9x50 Finder Scope |
| Standard Warranty | 2-Year Limited Warranty |
| Application | High-contrast deep-sky astrophotography mapping campaigns, utilizing a front corrector lens layout to eliminate off-axis coma aberrations across wide-field sensor planes. |
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