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Meade ACF-SC 152/1524 UHTC OTA Specs
| Brand | Meade Instruments |
| Full Model Code | Meade Advanced Coma-Free 6-inch Schmidt-Cassegrain Optical Tube Assembly with UHTC (217020) |
| Country of Origin | Mexico |
| Optical Design | Advanced Coma-Free (ACF) Catadioptric Catseye Structure (Hyperbolic Secondary / Aspheric Corrector) |
| Aperture | 152 mm (5.98 inches) |
| Focal Length | 1524 mm |
| Focal Ratio | f/10 |
| Optical Coatings | Ultra-High Transmission Coatings (UHTC) Matrix for Enhanced Light Throughput |
| Glass Material | Premium Borosilicate Primary Mirror Substrate with Water-White Glass Corrector Plate |
| Secondary Mirror Obstruction | 56 mm |
| Secondary Mirror Obstruction by Diameter | 36.8% |
| Secondary Mirror Obstruction by Area | 13.54% |
| Resolving Power | 0.76 Arcseconds (Dawes), 0.91 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 13.4 |
| Highest Useful Magnification | 300x |
| Lowest Useful Magnification | 22x |
| Optical Tube Material | Powder-Coated Aluminum Cylindrical Shell with Machined Metal Cast Cell Rings |
| Focuser Style & Mechanism | Internal Primary Mirror Focusing Mechanism with Zero-Shift Precision Slide Baffle Track |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 180 mm x 410 mm |
| Optical Tube Weight | 4.10 kg (9.04 lbs) |
| Mount Attachment Type | Integrated Vixen-Style Dovetail Mounting Rail Attachment Base |
| Finder Scope Specification | 8x50 Achromatic Optical Finder Scope with Crosshair Layout and Dual-Screw Alignment Bracket |
| Included Accessories | 6-inch ACF OTA, UHTC Glass Matrix, Vixen Dovetail Bar, 8x50 Finder Scope, 1.25-inch Eyepiece Holder Back, 90-Degree Mirror Diagonal (1.25-inch), Super Plossl 26mm Eyepiece (59x) |
| Standard Warranty | 1-Year Limited Warranty |
| Application | Custom integration with tracking platforms for clear deep-sky surveys, leveraging the proprietary hyperbolic secondary optical design to fully eliminate coma across the field of view. |






























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