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Askar ACL200 Gen. 2 Refractor 50/200 OTA Specs
| Brand | Askar |
| Full Model Code | ACL200 Gen. 2 |
| Country of Origin | China |
| Optical Design | Apochromatic Refractor Astrograph (6-Element Sextuplet with 2 ED Glasses) |
| Aperture | 50 mm (1.96 inches) |
| Focal Length | 200 mm |
| Focal Ratio | f/4 |
| Optical Coatings | Broadband Multi-Coated |
| Secondary Mirror Obstruction | 0 mm (0%) |
| Secondary Mirror Obstruction by Area | 0% |
| Backfocus Distance | 55 mm from M48x0.75 rear thread |
| Rear Cell Thread Type | M48x0.75 Male Thread |
| Image Circle Diameter | 44 mm (Full-Frame Astrophotography Coverage) |
| Resolving Power | 2.32 Arcseconds |
| Limiting Visual Magnitude | Not Applicable (Astrograph Only) |
| Highest Useful Magnification | Not Applicable (Astrograph Only) |
| Lowest Useful Magnification | Not Applicable (Astrograph Only) |
| Optical Tube Material | Aluminum CNC Assembly |
| Focuser Style & Mechanism | Dual Helical Focusing Arrangement (Coarse and Fine Adjustments with Decled Gradients) |
| Mirror Lock Mechanism | No (Astrograph Lens Assembly) |
| Optical Tube Dimensions | 100 mm x 195 mm |
| Optical Tube Weight | 1.8 kg (3.96 lbs) |
| Mount Attachment Type | Combined Vixen-Style and Arca-Swiss Mounting Base Plate |
| Finder Scope Specification | Not Included (Integrated finder slot rails) |
| Included Accessories | Integrated Lens Shade, Fine Aperture Control Ring (f/4 to f/22), Vixen/Arca base plate, Heavy-duty handle |
| Power Requirements | None |
| Standard Warranty | 2-Year Limited |
| Application | Wide-field deep-sky astrophotography across large-format or full-frame sensors, optimized for nebulae fields and dark sky survey networks on ultra-portable tracking mounts with a minimum capacity of 3 kg. |
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