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Old 17-07-2014, 04:40 PM
Astromelb
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Astromelb is offline
 
Join Date: Jan 2008
Location: Melbourne
Posts: 379
Dobsonian 10 inch telescope system

FOR SALE - DOBSONIAN 10 INCH TELESCOPE SYSTEM

Custom Hand Crafted Newtonian telescope on custom hand crafted Dobsonian box mount
Custom hand crafted by one of the most experienced telescope builders in Australia
Aperture - 10 inch (254mm)
Focal length 1250mm (f5)
Primary mirror - custom Japanese hand crafted by grand master optician
Primary optical quality - 1/20 wave PV
Primary mirror construction - Finest Grade fine annealed O'Hara Japanese pyrex
Primary mirror coating - Custom coated by grand master in Japan and SiO2 overcoated
Secondary mirror - Quartz 2.6 inch
Secondary mirror - Protostar USA
Secondary mirror quality - there is nothing that is better quality and capability than the Protostar Quartz units available commercially globally, this is the best there is
Secondary mirror coating - Dielectric premium, using the exotic Electron Beam Deposition process, the best process available commercially globally
Tube - Sonotube painted with premium Versol gloss enamel
Tube - Flock lined with Protostar USA premium flocking material (full length internally of the tube)
Dob box - Custom crafted by Melbourne's most experienced Dob box builder
Dob box - extra smooth operation, using premium Ultra High Molecular Weight Polyethylene bearings (which are better for this duty than Teflon)
Secondary mirror holder and spider - Premium Astro Systems USA
Focuser - Astro Systems USA Phase 4 unit - 2 inch Crayford with 1.25 inch adaptor - including anti marring compression for non marring of eyepiece barrel

This system suits new buyer and has been used rarely.

Capability - using premium eyepieces - this unit is capable of resolving something that you will rarely if ever achieve with any commercial telescope under $20k - and this is resolving the lobes of the "ejecta shell" of Eta Carina, such is the optical quality, mechanical quality & performance, and also the power of this system.

I have upgraded to an Officina Stellare 10 inch Sitall & Carbon tubed "Supremo" Maksutov and this system is not being used, thereby it is being passed on to someone that will actually use it.

This is an exceptional opportunity to secure a telescope that costs more than double this price from the supplier, and enables a resolution and performance that is very rare to find unless you purchase an Officina Stellare or something with such quality levels.

Price $ 2,800

Pick up in Melbourne, packaging & shipment available nationally at extra cost.

Thanks for looking.
Attached Thumbnails
Click for full-size image (254mm 1250mm Hand Crafted Newtonian Justin Collin Q3 2007 A.jpg)
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Click for full-size image (254mm 1250mm Hand Crafted Newtonian Justin Collin Q3 2007 B.jpg)
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Click for full-size image (254mm 1250mm Hand Crafted Newtonian Justin Collin Q3 2007 C.jpg)
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Last edited by Astromelb; 27-07-2014 at 09:59 AM. Reason: correction
 

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