Demonz06's Weblog

10-INCH DOBSONIAN

demonz06 — Mon, 17 Dec 2007 08:56:39 +0000

10-INCH DOBSONIAN

The Sky-Watcher Dobsonian Telescope 254mm/1200mm (10″) 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, this model include a 2″ focuser with a 1.25″ adapter, allowing the use of either eyepiece size. This model also include the new feature-tension control handle.

SPECIFICATIONS
Optical Design	Newtonian (Parabolic)
Lens Material
Diameter	253mm
Focal Length	1200mm
Scondary Mirror Diameter	47mm
F/ratio	F/5.9
Highest Practical Power	406x
Faintest Steller Magnitude	14.2
Resoving Power	0.56
Finderscope	9×50*
Focuser diameter	2” with 1.25” adapter
Eyepiece(s)	1.25” Super 25 and 10*
Mount Type	Dobsonian

Contact Person : Dhany Dewantara (0818641512)

8-INCH DOBSONIAN

demonz06 — Mon, 17 Dec 2007 08:55:25 +0000

8-INCH DOBSONIAN

The Sky-Watcher Dobsonian Telescope 203mm/1200mm (8″) 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, this model include a 2″ focuser with a 1.25″ adapter, allowing the use of either eyepiece size. This model also include the new
feature-tension control handle.

SPECIFICATIONS
Optical Design	Newtonian (Parabolic)
Lens Material
Diameter	203mm
Focal Length	1200mm
Scondary Mirror Diameter	47mm
F/ratio	F/5.9
Highest Practical Power	406x
Faintest Steller Magnitude	14.2
Resoving Power	0.56
Finderscope	9×50*
Focuser diameter	2” with 1.25” adapter
Eyepiece(s)	1.25” Super 25 and 10*
Mount Type	Dobsonian

Contact Person : Dhany Dewantara (0818641512)

6-INCH DOBSONIAN

demonz06 — Mon, 17 Dec 2007 06:54:22 +0000

6-INCH DOBSONIAN

The Sky-Watcher Dobsonian Telescope 153mm/1200mm (6″) have a “paraboloidal” primary mirror toeliminate spherical aberration and a four-arm, secondary- mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss. In addition, this models include a 2″ focuser with a 1.25″ adapter, allowing the use of either eyepiece size. This models also include the new feature-tension control handle.

SPECIFICATIONS
Optical Design	Newtonian (Parabolic)
Lens Material
Diameter	153mm
Focal Length	1200mm
Scondary Mirror Diameter	34.5mm
F/ratio	F/7.8
Highest Practical Power	306x
Faintest Steller Magnitude	13.6
Resoving Power	0.74
Finderscope	6×30*
Focuser diameter	2” with 1.25” adapter
Eyepiece(s)	1.25” Super 25 and 10*

Contact Person : Dhany Dewantara (0818641512)

Hello world!

demonz06 — Mon, 17 Dec 2007 06:32:49 +0000

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