CELESTRON RASA UPDATE
CELESTRON RASA PLUS
CELESTRON RASA FREE

Schmidt cameras could produce great images, but they wre and imaging scope only a really hard-core astrophotographer could love. The Celestron RASA concept was to modernize the Celestron Schmidt camera, an instrument that had a loyal following, as its very fast focal ratio allowed amateur astrophotographers to produce wide field deep space images in the 1970s. That means you can create better-looking deep space images in a fraction of the time it used to take, even without using an autoguider.

CELESTRON RASA PLUS

Those advantages? Better apparent tracking due to the image scale, plus shorter exposure times due to the speed of the optics. Its fast, wide field, f/2 optics give you two huge advantages over traditional f/10 catadioptric imaging scopes (even those using an optional f/6.3 or f/7 focal reducer). The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range - or even that of a much more expensive instrument.

CELESTRON RASA FREE

It provides a proven Schmidt corrector optical system with a built-in corrector lens that keeps the images free of coma, field curvature, and false color. The telescope does not work with standard DSLR cameras. That's because the 400mm focal length f/2 Celestron 8' RASA is strictly a deep space imaging scope and cannot be used visually.īut what an imaging scope! It has a 22mm image circle that can handle CMOS cameras, smaller CCD cameras, and mirrorless cameras. it doesn't even have a place to put an eyepiece. It's not only missing something that comes with virtually every telescope ever produced. This might be the most common question people ask when you unpack your new Celestron Rowe-Ackermann Schmidt Astrograph (RASA). StarBright XLT optical multicoatings for the highest possible light transmissionĤ2mm T-thread and C Thread camera adapters Very fast 8' f/2 Rowe-Ackermann Schmidt optics This Celestron 8' f/2 Rowe-Ackermann Schmidt Astrograph (RASA) optical tube has:

Proven NexStar+ computerized telescope control technology supports functions to address imagers’ needs, such as All-Star Polar Alignment, Permanent Periodic Error Correction (PPEC), and adjustable tracking through meridian.

The drive system, consisting of low cog DC Servo motors with integrated optical encoders, steel worm gears supported by precision sealed bearings, and brass worm wheels, ensures smooth and accurate slewing and tracking.

CELESTRON RASA UPDATE

The CGEM II, with its 40 lbs load capacity, is the latest update to the venerable CGEM mount and provides a sturdy and rigid platform for the fully-loaded RASA 8.Performs over a wider spectral range than most telescopes, from 390 - 800 nm, so more of the light passing through the astrograph is in sharp focus.Internal filter mount – seamlessly accommodates a Light Pollution Imaging Filter into the optical path.NEW Ultra-Stable Focus System – six precision sealed ball bearings virtually eliminate image shift.Unlike the larger RASAs that work with DSLR and large CCD cameras, the 8” model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind.Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor.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.

Celestron rasa