Meade Instruments gives you a
complete GoTo-enabled observation rig with the ability to make detailed
observations of the Moon, with the ability to easily see planets and
reach outside the solar system to resolve bright deep-space objects with
their venerable ETX90 Observer 90mm f/13.8 Maksutov-Cassegrain GoTo Telescope.
The compact and powerful Maksutov design uses a front corrector plate
with a convex meniscus lens to correct off-axis aberrations, like comas,
and chromatic aberration to produce images with true color rendition.
The nature of the lens results in a smaller secondary mirror - limiting
obstruction and increasing contrast, while eliminating the need for
periodic collimation. This optical path results in a slower focal ratio
and narrower field of view versus a similar Schmidt-Cassegrain varient,
but the optical benefits makes this an ideal scope for all types of
celestial observations.
For those who want to use it for
astrophotography, an internal mirror flips down to direct the light path
straight back for prime-focus photography using a DSLR camera body and
optional adapters. An equatorial tilt plate is integrated into the
tripod, which allows for proper polar alignment and single-axis tracking
for smoother and more precise tracking as required by long-exposure
photography.
The brain of this system is Meade's revolutionary
AudioStar hand controller. Equipped with a 2-line LED display and 20-key
red backlit keypad and an integrated speaker, it controls the motorized
mount for precise GoTo capabilities. Its internal 30,000+ object
database is updateable via the internet, and has the capability to take
you on a hands-free guided tour of the night sky above them, with audio
commentary on select objects with expanded information. To consult star
charts, logs, or to change eyepieces and filters, the controller also
has a built-in red LED utility light that won't affect your
night-adjusted vision.
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