THE DOBSON FACTORY; New Travel dob 12" f/d4
Posted 07 June 2012 - 02:33 PM
Optics made by Franck Griere, from Mirrosphere, France.
The hole scope including optics, can be put in the box which is used as the base.
This intrument ordered by a Suiss client, will soon travel to the Atacama Desert, in Chile.
The Dobson Factory is a French telescope maker, building made to order instruments from 10" to 30 " size. It can ship worldwide.
English, German and Japanese spoken.
Web site (French): https://sites.google...edobsonfactory/
Web site (German):
Posted 09 June 2012 - 05:09 AM
One hour tracking, very accurate, no vibration and slippage: the driving is done by a tangent rod, with an optimised microstep motor and very robust connections:
Posted 10 June 2012 - 08:15 PM
Very nice scope and a very pretty backyard!
I have a few questions...what is the power source for your equatorial drive? And what type of diffraction spikes are produced by the spider that you produce?
Posted 12 June 2012 - 12:49 PM
The power source for the equatorial drive is a simple 12 V battery. Consumption is less than 1A:
As for the spikes, they are usual, that is the 4 ones (as far as the branches of the spider are parallel, we get 4 spikes).
Posted 12 June 2012 - 06:24 PM
Posted 12 June 2012 - 06:46 PM
To add to Gene's question, if you have US customers who already have a mirror and other components such as a focuser, is it possible for you to make a scope without having to ship the components to you? I would prefer not to have to send my mirror across the Atlantic!
Posted 13 June 2012 - 01:00 AM
Mark, you are right, it is possible to make the mount without the mirrors and focuser. The only thing we need it the exact focal lentgh and the weight of the mirrors.
The same if people prefer to order new mirrors from an american optician.
Posted 25 June 2012 - 12:28 PM