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Sky-Watcher
Reflectors Call us Direct for best
Price (08) 9249 6825 |
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Optical Design |
Catadioptric Newtonian |
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Diameter in mm |
130mm |
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Focal Length in mm |
1000mm |
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Focal Ratio |
F/8 |
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Highest Practical Power |
260X |
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Faintest Stellar Magnitude |
13.3 |
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Resolving Power (arc sec) |
0.9 |
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Finder-scope |
Optical 6x30 |
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Focuser Diameter |
31.7mm |
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Eyepiece (s) |
Super 25 and 10mm |
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Mount Type |
Equatorial - EQ2 |
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Slow-Motion Control |
Both axes by flexible cable |
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Counterweight (s) |
Supplied |
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Piggyback Bracket |
Yes |
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Accessory Tray |
With tripod |
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Tripod |
Adjustable aluminium |
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Motor Drive |
EQ2 Drive (inc) |
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SK P15075EQ3-2
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Diameter/Aperture: 150mm
- Focal Length: 750mm
- Diffraction-limited secondary mirror support
- Paraboloidal (parabolic) primary mirror
- 150 primary mirror gathers enough light to reveal deep-sky
luminaries. 33% more light gathering power than 130mm, 73%
more light than 114mm
- 6x30 achromatic finderscope for easy location of objects
- Smooth rack-and-pinion 1.25" focuser |
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SKP2001EQ5
- Diameter/Aperture: 200mm
- Focal Length: 1000mm
- Diffraction-limited secondary mirror support
- Paraboloidal (parabolic) primary mirror
- 200mm primary mirror gives magnificent images of deep-sky
objects. 78% more light than 150mm, 137% more light than
130mm
- Huge 9x50 achromatic finderscope reveals objects that
elude smaller finderscopes
New! -1.5" Steel
tripod legs for maximum stability
- Perfect instrument for serious amateur
MOUNT AND TRIPOD
EQ5 mount with stainless steel tripod.
(upgraded from aluminum tripod)
Standard features of the EQ5 mount include a built-in holder
for polar scope, a latitude adjuster with micrometer scale,
an azimuth polar-alignment adjuster, aluminum setting
circles, large manual slow-motion tracking controls on RA
and DEC, and a bubble level. The proposed strong and rigid
field tripod is remarkably stable with adjustable height,
incorporating 1.5"-diameter steel tripod legs. The lowest
possible height with the tripod is 70cm and the maximum
extendable height with the tripod is 121cm. |
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SKP2001HEQ5
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Diffraction-limited secondary mirror support
- Paraboloidal (parabolic) primary mirror
- 200mm primary mirror gives magnificent images of deep-sky
objects. 78% more light than 150mm, 137% more light than
130mm
- Huge 9x50 achromatic finderscope reveals objects that
elude smaller finderscopes
- 1.5" Steel tripod legs for maximum stability
- Perfect instrument for serious amateur
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SPECIFICATIONS
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Optical Design:
Diameter:
Focal Length:
F/ratio:
Highest Practical Power:
Faintest Steller Magnitude:
Resolving Power (arc sec.):
Finderscope:
Focuser Diameter:
Mount Type:
Slow-motion Control:
Piggyback Bracket:
Accessory Tray:
Tripod:
Motor Drive:
Tube Dimensions:
Tripod Height: |
Achromatic Refractor
200mm
1000mm
f/5
400x
14.2
0.6
9x50
2" with 1.25" adapter
Equatorial
RA & DEC
Yes
Yes
1.5" steel tripod
Dual axis (included)
24cm x 92cm
97-121cm |
Can be made into Go-To |
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SKP25012EQ6-2IN
The SKP25012EQ6-2IN is the largest
reflector in the Sky-Watcher Newtonian family. It is
equipped with the EQ6 mount, a paraboloidal mirror
made from Pyrex glass, diffraction-limited secondary
mirror support, 2" focuser, one 2" eyepiece, a
2"-1.25" eyepiece adapter, and a 9x50 finderscope.
Specifications
D: 254mm
F: 1200mm
F/ratio: f/4.7
Highest practical power: 508X
Resolving power (arc sec.): 0.45
Finderscope: 9x50
Focuser diameter: 2"
Mount: EQ6 mount
Motor drive: Built-in dual axis
Polar Scope: Built-in
Piggyback bracket: Yes
Accessory tray: Yes
Tripod: Steel
Eyepiece: 2" eyepiece, 2"-1.25" adapter |
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Can be made into Go-To |
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Sky-Watcher
DOBSONIANS
The Sky-Watcher
Dobsonian Telescopes includes 153mm/1200mm (6"),
203mm/1200mm (8") and 254mm/1200mm (10") Newtonian-based
models. All models have a "paraboloidal" primary mirror to
eliminate spherical aberration and a four-arm, secondary-
mirror bracket with fine supports (0.5mm thick), to reduce
diffraction spikes and light loss. In addition, all models
include a 2" focuser with a 1.25" adapter, allowing the use
of either eyepiece size. The 203mm/1200mm (8") and
254mm/1200mm (10") models also include the new feature-tension
control handle.
(203MM/1200MM model shown here).
TENSION CONTROL HANDLE
(United States Patent No. 6,940,642)
The secret of the design is to correctly balance the optical
tube with special designed handles on the base. The design
adds enough friction and tension to allow the tube to move
easily when nudged but to stay in position when not. Users
can easily add or reduce tension by turning on the handle.
This feature solves the common balance problem found on many
Dobsonians. Available on all Dobsonian models.
PYREX GLASS ON THE 10"
The Sky-Watcher 10” Dobsonian features a primary mirror made
of Pyrex glass. Because of its very low coefficient of
thermal expansion, Pyrex glass is less affected by changing
temperatures. This greatly reduces the cooling time of a
telescope larger than 8” in dameter without using an extra
fan. The great stability of this low expansion glass ensures
high quality images. It is also substantially more resistant
to scratching then plate glass. Available on 254mm/120mm
(10") only
153MM/1200MM (6"): Diameter: 153mm
focal length: 1200mm, 6x30 finderscope, eyepieces: Super
25mm and Super 10mm. Weight: Tube 6kgs Base 8 kgs.
203MM/1200MM (8")*: Diameter: 203mm focal length:
1200mm, 9x50 finderscope, eyepieces: Super 25mm and Super
10mm. Weight: Tube 8kgs Base 8 kgs.
254MM/1200MM (10"): Diameter: 254mm focal length:
1200mm, Pyrex glass, 9x50 finderscope, eyepieces: Super 25mm
and Super 10mm. Weight: Tube 12.5 kgs Base 8 kgs.
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DOB 8” 10" and 12" COLLAPSIBLE
A COLLAPSIBLE TRUSS-TUBE DOBSONIAN DESIGN THAT REQUIRES NO REASSEMBLY
--THE ULTIMATE CONVENIENCE!
SkyWatcher does it again. An old favorite gets a complete
facelift with new features and upgraded components!
The venerable Dobsonian reflector design has recently undergone
some important upgrades and improvements: SkyWatcher is pleased to
introduce the all-new Collapsible Dobsonian complete with Crayford
focuser – the ultimate in large aperture portability and
performance.
This elegant truss tube design was carefully engineered to
combine ease of use, extreme portability and consistent performance
in an affordable package. Unlike other truss tube designs, the
SkyWatcher Collapsible Dobsonian does not need to be disassembled
between uses. It transports as two compact pieces that can be
assembled and ready to use in just seconds! It is easy to collimate
once set up, and it holds its collimation throughout the evening!
The bearing system has been redesigned as well. The new
SkyWatcher Collapsible Dobsonians feature buttery smooth azimuth
bearings. Even the twelve-inch model can be rotated with just the
push of a finger. Like our traditional Dobsonians, the new
Collapsible Dobsonians feature SkyWatcher’s patented tension
adjustment control on the altitude bearings. This eliminates the
need and added cost of clumsy counterweight systems to balance the
telescope.
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Please
call us for the latest pricing details. If you require any additional
information on any of our great range of products or services, feel free
to drop in, call or email us:
keith@btow.com.au |
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