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Quality
Telescopes, Mounts, Binoculars, and Spotting Scopes
VMC200L
Catadioptric
The
VMC200L is a unique catadioptric optical system. It incorporates
a primary mirror and a meniscus corrector just before a
secondary mirror. By doing so, light is corrected twice on the
optical path. The end result is that spherical aberration and
field curvature are corrected to a high degree of optical
performance. The VMC200L’s primary mirror is f/2.5; the compound
optical system is f/9.75. This makes the system much more
compact and portable than its competition.
With
the optical correction placed before the secondary mirror the
VMC200L avoids the necessity of having a corrector plate and all
the dewing problems associated with a closed optical tube.
An
additional key feature is the rack and pinion focusing that is
placed behind the primary mirror. The use of this focusing
system eliminates the image shift associated with most other SCT
systems. This is especially important when using high power
magnification or astro-photography. When focusing, the image is
stable and easy to adjust.
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Technical data:
Construction: Catadioptric Reflector
d=200mm (8”)
f=1950mm, f/9.75
Primary mirror: f=500mm, f/2.5
Secondary mirror: d=72mm, magnification 3.9x
Distance primary-secondary:: 330mm
Central obstruction 80mm diameter (40% of diameter)
Theoretical resolution (Dawes): 0.63"
Theoretical min magnitude: 13.3
Tube length 525mm incl. focuser
Weight: 5.9kg
Finder scope: 7x50 |
New Price
$1099.00 OTA Only
VMC200L with GPD2
Mount
VMC200L with Sphinx
Mount
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