Those images are free from chromatic aberration of any type, thanks to the ED element in the scope's triplet optics. Its images of subtle low-contrast lunar and planetary details are razor-sharp, with realistic and highly saturated color. The AT92 is an exceptional grab and go scope for observing and imaging - both within the solar system and out to the furthest reaches of infinity. He studied it, and made some changes to try and get every ounce of performance possible out of 92mm of glass. We sent the design to Roger Ceragioli to give it a once over and make sure that it was performing as it should with advances in glass and coatings over the last decade. The design has set dormant in our "vault" for the past 5 years or so until we thought it was time to dust it off. Thomas laid the foundation for this scope when we had him design his ultimate refractor, the TMB-92 Signature Series. The AT92 is a continuation of the legendary TMB92. It is ideal for the serious observer who will accept nothing less than unsurpassed imaging and visual observing performance in a supremely portable body you can take with you anywhere in the world. The AT92 puts exceptionally high optical and mechanical quality in a truly tiny package. Measuring only about 16.5" long with the focuser and dewshield retracted for storage and travel, the AT92 optically and mechanically fills the void left by the discontinued TMB-92 and 90mm f/5 Astro-Physics Stowaway (a legendary scope that sells for up to $6000 on the used market). ![]() The AT92 92mm f/5.5 triplet apo is a very compact refractor for the serious observer and traveler. retractable dew shield, dust covers, and 20.5"x9.5"x9" hard case.2" and 1.25" compression ring eyepiece holders.2.5" dual-speed rotating rack and pinion focuser.collimatable lens cell for peak imaging and optical performance.92mm f/5.5 apochromatic triplet optics using an ED/Lanthanum combination. ![]() Astro-Tech AT60ED and AT72EDII Black Friday Sale.Various Closeouts Meade, Kendrick, Bob's Knobs, JMI and others. ![]()
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