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Sky-Watcher's 10" f/3.94 Quattro Imaging Newtonian Telescope
has been specifically engineered for astrophotography and astro-imaging
performance. Its 1000mm focal length has been shortened to produce a
fast f/3.94 focal ratio which helps to reduce the exposure times
required for capturing detailed images of the Moon, planets, and
deep-sky objects. To further help boost it's performance are
borosilicate mirrors which have a low coefficient of thermal expansion
to reduce the effects of expansion/contraction due to temperature
fluctuation. This helps limit distortion that can occur when moving the
OTA from indoors to outdoors and limiting the scope's ability to resolve
details. The entire optical system is fully multi-coated to increase
the reflectivity of all surfaces to prouce brighter and sharper images.
imaging and visual use, the ability to achieve tack-sharp focus is
critical, so Sky-Watcher outfitted the Quattro with a large 2"
Crayford-style focuser. This design uses a steel rod held tightly
against the focus tube under tension. Using this toothless friction
system eliminates backlash and enables ultra-fine precision focusing. A
large coarse-focus wheel quickly brings subjects into rough focus, and
then the 10:1 fine-focus allows the user to precisely focus it without
the risk of losing it as soon as the knob is released. Having the
ability to use larger 2" accessories and eyepieces provides an immersive
experience during observation sessions and the ability to use larger
sensors for capturing images.
The Quattro is offered here without a
mount or tripod for users that have a solid observation platform. Its
cradle ring assembly clamps over the OTA and allows the OTA to be
positioned for balancing when mounted, the eyepiece to be precisely
placed for more comfortable observations, and the entire rig to be
adjusted to avoid interference with other equipment and accessories. A
Vixen-style dovetail plate on the bottom of the cradle ring assembly
makes this OTA compatible with any Vixen-style saddle.