Highlights 10" f/10 Advanced Coma Free Optics - 2500mm focal length Ultra-High Transmission Coatings (UHTC) Primary mirror lock for increased image stability Oversized low-expansion borosilicate primary mirror Losmandy wide style mounting rail Note: We have star-tested this optical tube, please see the listing image for a de-focused star collimation test. Advanced Coma-Free LX200 Optical Tube comes with Meade's Ultra-High Transmission Coatings (UTHC), Oversized Low-Expansion Borosilicate Primary Mirror, Schott Borofloat Glass Corrector Plate, Diffraction Limited Optics, Losmandy-style dovetail, and Dust Cover. The Advanced Coma-Free (ACF) optical system has brought the highest level of optical performance well within the reach of most amateurs. Using the Meade exclusive design, ACF optics achieve aplanatic performance - with a flatter field, reduced astigmatism and eliminated diffractions spikes. Coupled with Meade's Ultra-High Transmission Coatings (standard on all LX200-ACF systems), you have the ultimate in premium optics. All LX200 models feature a primary mirror locking mechanism, which effectively prevents movement of the primary mirror during long exposure astrophotography or observing. Turn the lock knob located just above the telescopes main focus knob and the progressive-tension primary lock completely cancels any residual image shift due to mirror movement during visual, photographic, or imaging applications. The 10" LX200 Optical Tube Assembly has a 2500mm focal length, an f/10 focal ratio, and weighs 26lbs. Designed and manufactured in North America. Warranty: Limited Warranty against defects in materials or workmanship for two years from date of purchase. This warranty is provided by Meade for the benefit of the original retail purchaser only. For complete warranty details contact Meade at 800-626-3233. Best for viewingFainter deep sky Best for imaging: Solar, lunar, planetary & Messier objects Astro-imaging capability: Lunar, planetary & long exposure User level: Advanced Optical design: Advanced Coma-Free (ACF) Optical diameter: 254mm Focal length: 2500mm Focal ratio: f/10.0 Resolving power: 0.46arc*sec Lowest useful magnification: 36x Highest useful magnification: 300x Highest theoretical magnification: 500x Limiting stellar magnitude: 14.7 Optical quality: Diffraction limited Finder scope: 5x24 Focuser: Internal Mount type: Optical Tube without Mount Tube material: Aluminum Weight, optical tube: 26.0 lbs. Additional included accessories: Losmandy style dovetail bar Other features: Ultra High Transmission Coatings (UHTC) Warranty: Two year Software Downloads Autostar Suite Astronomers Edition (Lite Version) (67.9 MB) Autostar Suite version 5.53 (full DVD) (1.4 gb)
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