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TS Optics Photoline AP 102/714 OTA Specs
| Brand | TS Optics (Teleskop-Service) |
| Full Model Code | TS Optics Photoline 102 mm f/7 Extra-Low Dispersion Doublet Apochromatic Refractor Optical Tube Assembly |
| Country of Origin | Germany (Design / Quality Control) / Japan (Ohara Lens Core) |
| Optical Design | Apochromatic Refractor (2-Element Air-Spaced Doublet Objective Cell housed in a fully adjustable alignment mount) |
| Aperture | 102 mm (4.02 inches) |
| Focal Length | 714 mm |
| Focal Ratio | f/7.00 |
| 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 element paired with a specialized Lanthanum mating element |
| Secondary Mirror Obstruction | 0 mm (Unobstructed Optical Path Setup) |
| Secondary Mirror Obstruction by Diameter | 0% |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 1.14 Arcseconds (Dawes), 1.35 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 11.8 |
| Highest Useful Magnification | 204x |
| Lowest Useful Magnification | 15x |
| Optical Tube Material | Rigid Powder-Coated Aluminum Tube lined with precision internal stray-light trapping baffles |
| Focuser Style & Mechanism | 2.5-inch Heavy-Duty Gear-Driven Rack and Pinion Focuser featuring 360-degree rotation, M63x1 internal threads, and 10:1 micro-focusing reduction |
| Mirror Lock Mechanism | No (Equipped with robust non-marring structural friction drawtube clamp screws) |
| Optical Tube Dimensions | 105 mm x 600 mm (Tube Outer Diameter x Retracted Dew Shield Operating Length Profile) |
| Optical Tube Weight | 4.10 kg (9.04 lbs) (Total weight rating inclusive of standard CNC ring blocks and integrated dovetail bar) |
| Mount Attachment Type | CNC-Machined Aluminum Tube Clamps paired with a standard GP-Level Vixen Dovetail Plate Frame |
| Finder Scope Specification | Universal quick-release finder bracket shoe base mounted directly onto the primary focuser ring |
| Included Accessories | 102mm FPL53/Lanthanum Doublet Lens, Retractable Dew Shield, 2.5-inch RPA Focuser, CNC Tube Rings, Vixen Dovetail Rail, 2-inch to 1.25-inch Reducer |
| Standard Warranty | 2-Year Limited Warranty |
| Application | High-contrast planetary tracking and mobile deep-sky imaging, leveraging an FPL-53 and Lanthanum combination to provide excellent color correction while minimizing weight. |
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