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Meade ACF-SC 355/2845 UHTC LX850 OTA
For high-load equatorial integration, the Meade ACF-SC 355/2845 UHTC LX850 OTA provides a 356mm ACF optical tube with 2845mm focal length and Losmandy-style mounting.
- 356mm aperture provides 0.32-arcsecond resolution
- 2845mm focal length uses f/8 optics
- UHTC coatings support the optical system
- Losmandy rail and 26mm eyepiece included
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Description
Custom high-aperture imaging begins with the Meade ACF-SC 355/2845 UHTC LX850 OTA, a standalone 14-inch Advanced Coma-Free optical tube with a 2845 mm focal length and listed f/8 optical ratio. Its UHTC coatings, Pyrex primary mirror substrate, primary mirror lock, internal zero-shift focusing, 8×50 finder, 26 mm eyepiece, diagonal, Losmandy-style dovetail, and aluminum housing provide a large optical platform for a separately selected LX850 or other compatible high-capacity mount.
The OTA is supplied without a complete mount, tripod, counterweights, StarLock system, power source, or computerized controller, so the final configuration must be selected according to payload, dovetail, tracking, guiding, and camera requirements. The 356 mm aperture and 2845 mm focal length support high-resolution planetary, lunar, deep-sky, and astrophotography applications, while focus stability and image quality depend on the completed mount and imaging workflow.
Key Features of Meade ACF-SC 355/2845 UHTC LX850 OTA
This standalone ACF optical tube combines a 356 mm aperture with a 2845 mm focal length, f/8 optical ratio, UHTC coatings, Pyrex primary mirror, primary mirror lock, internal precision focusing, 8×50 finder, 26 mm eyepiece, diagonal, and Losmandy-style mounting rail.
- 356 mm Advanced Coma-Free catadioptric system
- 2845 mm focal length with listed f/8 optical ratio
- Ultra-High Transmission Coatings
- Pyrex primary mirror substrate
- Primary mirror manual locking bolt
- Internal zero-shift focus mechanism
- 8×50 finder and 26 mm Super Plossl eyepiece
- Diagonal, visual back, and Losmandy-style rail
Standalone Large-Aperture Imaging
The supplied application focuses on high-resolution planetary observation, lunar detail, deep-sky targets, and supported astrophotography using a standalone 14-inch ACF tube, while final mount stability, payload support, camera connection, focus spacing, power requirements, guiding, thermal preparation, and computerized control depend on the separately selected telescope platform.
Why Choose Meade ACF-SC 355/2845 UHTC LX850 OTA
This OTA is relevant when a custom observatory or imaging system needs a large 14-inch ACF optical tube with UHTC coatings, primary mirror locking, internal precision focusing, long focal length, finder, eyepiece, diagonal, visual back, and Losmandy-style mounting for a separately selected LX850 or other heavy-duty equatorial platform.
- 356 mm aperture with ACF optics and UHTC coatings
- Long 2845 mm focal length with primary mirror lock
- Finder, eyepiece, diagonal, visual back, and Losmandy rail included
Meade 1-Year Limited Warranty
The supplied product information lists a 1-year limited warranty for this optical tube assembly, and the applicable US warranty terms, optical coverage, mirror-lock coverage, focusing mechanism coverage, accessory coverage, registration requirements, and authorized service process should be confirmed before integrating the OTA into a separate high-capacity tracking system.
Meade ACF-SC 355/2845 UHTC LX850 OTA Specs
| Brand | Meade Instruments |
| Full Model Code | Meade Advanced Coma-Free 14-inch f/8 Optical Tube Assembly with UHTC (1408-60-01OTA) |
| Country of Origin | Mexico |
| Optical Design | Advanced Coma-Free (ACF) Catadioptric Catseye Structure (Hyperbolic Secondary / Aspheric Corrector) |
| Aperture | 356 mm (14.02 inches) |
| Focal Length | 2845 mm |
| Focal Ratio | f/8 |
| Optical Coatings | Ultra-High Transmission Coatings (UHTC) Matrix for Enhanced Light Throughput |
| Glass Material | Premium Pyrex Glass Primary Mirror Substrate with Water-White Glass Corrector Plate |
| Secondary Mirror Obstruction | 114 mm |
| Secondary Mirror Obstruction by Diameter | 32.0% |
| Secondary Mirror Obstruction by Area | 10.25% |
| Resolving Power | 0.32 Arcseconds (Dawes), 0.39 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 15.4 |
| Highest Useful Magnification | 700x |
| Lowest Useful Magnification | 51x |
| 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 | Yes (Equipped with Primary Mirror Manual Clamping Lock Bolt on Rear Cell) |
| Optical Tube Dimensions | 400 mm x 760 mm |
| Optical Tube Weight | 25.40 kg (56.00 lbs) |
| Mount Attachment Type | Heavy-Duty Losmandy-Style D-Plate Platform Rail |
| Finder Scope Specification | 8x50 Achromatic Optical Finder Scope with Crosshair Layout and Dual-Screw Alignment Bracket |
| Included Accessories | 14-inch f/8 ACF OTA, Losmandy Dovetail Rail, 8x50 Finder Scope, 1.25-inch Eyepiece Holder Back, 90-Degree Mirror Diagonal (1.25-inch), Super Plossl 26mm Eyepiece (109x) |
| Standard Warranty | 1-Year Limited Warranty |
| Application | Custom pairing with high-load equatorial tracking platforms for flat-field astrophotography, leveraging an f/8 imaging cone to reduce processing exposure times compared to standard f/10 catadioptric options. |
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