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TS Optics Imaging Star AP 100/580 Quadruplet Apo OTA Specs
| Brand | TS Optics (Teleskop-Service) |
| Full Model Code | TS Optics Imaging Star 100 mm f/5.8 Quadruplet Flatfield Apochromatic Refractor Optical Tube Assembly |
| Country of Origin | Germany (Design / Quality Control Oversight) |
| Optical Design | Apochromatic Astrograph (4-Element Petzval-Style Quadruplet layout utilizing an integrated dual-lens field corrector system) |
| Aperture | 100 mm (3.94 inches) |
| Focal Length | 580 mm |
| Focal Ratio | f/5.80 |
| Optical Coatings | Premium Broad-Band Fully Multi-Coated (FMC) layers across all air-to-glass lens transitions |
| Glass Material | Premium Japanese Ohara FPL-53 Extra-Low Dispersion Glass core element matched with optimized secondary high-refractive glass layers |
| Secondary Mirror Obstruction | 0 mm (Unobstructed Optical Path Setup) |
| Secondary Mirror Obstruction by Diameter | 0% |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 1.16 Arcseconds (Dawes), 1.38 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 11.8 |
| Highest Useful Magnification | 200x |
| Lowest Useful Magnification | 14x |
| Optical Tube Material | Rigid Powder-Coated Aluminum Tube lined with precision internal stray-light trapping baffles |
| Focuser Style & Mechanism | 3-inch Ultra-Heavy-Duty Rack and Pinion Focuser Unit with 360-degree rotation, M78x1 rear threads, and 10:1 micro-focusing reduction |
| Mirror Lock Mechanism | No (Equipped with manual drawtube friction locking tension adjustments) |
| Optical Tube Dimensions | 114 mm x 490 mm (Tube Outer Diameter x Compact Retracted Transport Length Profile) |
| Optical Tube Weight | 5.30 kg (11.68 lbs) (Total baseline setup weight including multi-functional CNC ring blocks and mounting tracking rail) |
| Mount Attachment Type | CNC-Machined Aluminum Tube Clamps paired with a universal Vixen-Style GP-Level Dovetail Plate Frame |
| Finder Scope Specification | Universal quick-release finder bracket module base attached on the primary focuser housing assembly |
| Included Accessories | 100mm Quadruplet Optics, Integrated Field Flattener, 3-inch RPA Focuser, CNC Tube Rings, Vixen Dovetail Bar, M48 Camera Adapter |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Turnkey flat-field astrophotography across oversized sensors, removing complex backfocus spacing issues via its pre-spaced internal corrector element. |
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