![]() Alternatively, the fan can be powered by a 12 VDC rechargeable battery if one is being used to power your mount's drive system.Ĭarbon fiber truss-tube body: The 39.5" long Astro-Tech AT12INT optical tube uses carbon fiber truss tubes and CNC-machined stainless steel and aluminum hardware. The fans are powered by a supplied battery pack that uses eight user-supplied AA batteries. Three built-in cooling fans: Three small low-vibration fans are mounted on the primary mirror cell. The recessed screw design holds the mirror collimation more securely than exposed knobs that can be moved inadvertently. No-tool push-pull mirror cell: The die-cast aluminum primary mirror cell has six recessed push-pull collimation screws. They are coated with 96% reflectivity enhanced aluminum, and overcoated with a protective layer of silicon dioxide (quartz) for long life. Both primary and diagonal mirrors are ground and polished under computer control for guaranteed diffraction limited performance. Parabolic primary mirror, with press-fit dust cover. Newtonian reflector optics: 12" aperture, 1220mm focal length, f/4 focal ratio. This Astro-Tech AT12INT 12" Imaging Newtonian has. Simply add optional 1.25" or 2" eyepieces, and perhaps an optional Barlow lens, and this Astro-Tech Imaging Newtonian will provide you with crisp and sharply detailed close-up views of the Moon and planets. However, the visual performance within the solar system will still be much more than acceptable, and the 1016mm focal length of this 10" Astro-Tech makes it quite possible to achieve the high powers needed for detailed lunar and planetary observing. Visually, the scope should probably be considered more of a deep space "light bucket," rather than a solar system scope. As the AT12INT's large secondary mirror has been optimized for full-field photographic illumination, solar system visual contrast will be somewhat reduced compared to a longer f/ratio reflector with a smaller secondary. In addition to deep space imaging, the Astro-Tech AT12INT is also usable for solar system imaging as well as deep space and solar system visual observing. It can be used with DSLRs and large format CCD cameras. This Sky & Telescope 2016 Hot Product 12" Astro-Tech AT12INT carbon fiber truss tube optical tube is a very fast focal ratio f/4 reflector that has been optimized for wide field imaging of faint deep space objects. Three built-in cooling fans for faster primary mirror cooldownĨ x 50mm finderscope in a quick-release bracket Very fast f/4 focal ratio 12" Newtonian reflector opticsĢ" dual-speed linear bearing Crayford focuser with 2" and 1.25" compression ring accessory adapters This Sky & Telescope Hot Product for 2016 Astro-Tech 12" Truss-Tube Imaging Newtonian has: Enjoy savings on many Explore Scientific eyepieces. ![]() Various Used and Demo Scopes and Mounts.Astro-Tech AT60ED and AT72EDII Black Friday Sale.Various Closeouts Meade, Kendrick, Bob's Knobs, JMI and others.Astronomics Used, Demo, Closeout, Spring Cleaning Page.Rechargeable Batteries And Power Supplies.Personal Planetariums / Electronic Sky Guides.Focal Reducer and Field Flattener Combos.Equatorial & Altazimuth Accessories & Adapters.
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