davidpretorius
16-01-2007, 08:50 AM
After a frustrating night trying to manually focus my 10" dob which was imaging saturn at f38.5 or 9625mm, when the slighest sniff or foot step would shake the image off the screen, i am again looking at focussing.
I have an analogue motor kit and a stepper kit that if I can find the time, can make one, but I would like to look at all options.
So off the shelf, from our esteemed local seller of fine astro gear, I would appreciate suggestions as to what is the right electric focusser to buy.
So details, 10" x 1250 dob that is driven by a dob driver II. It already has the 2" crayford manual focusser.
I would like to link to the laptop to drive the focussing from there if possible. I can easily write a program to talk to a driver etc in windows. BUT if I have to go a second hand controller then that is fine.
FUture consideration:
Compatibilty of the focusser on a 16" GSO or 16" LB
Compatibilty with a colour filter wheel for programmed different focus points for the separate coloursThanks guys, I value your input
dp
I have an analogue motor kit and a stepper kit that if I can find the time, can make one, but I would like to look at all options.
So off the shelf, from our esteemed local seller of fine astro gear, I would appreciate suggestions as to what is the right electric focusser to buy.
So details, 10" x 1250 dob that is driven by a dob driver II. It already has the 2" crayford manual focusser.
I would like to link to the laptop to drive the focussing from there if possible. I can easily write a program to talk to a driver etc in windows. BUT if I have to go a second hand controller then that is fine.
FUture consideration:
Compatibilty of the focusser on a 16" GSO or 16" LB
Compatibilty with a colour filter wheel for programmed different focus points for the separate coloursThanks guys, I value your input
dp