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Pictures might help. I have removed the secondary mirror from it holder on my Starmaster without removing the holder from the spider. It is not hard. The screws that hold the mirror in come out. I do

I'm not sure it's the same, but on our 18" UC you can remove the screws holding the secondary cylinder to spider/collimator mount and remove the foam, dew heater, and mirror from there.

Hi, I wonder if anyone can help, please? I think that the Dew-Guard pads to the back of my secondary mirror on my 20" f/4 classic Obsession have come loose as it no longer seems to come on in use

Tony, I remotely observe with my UC18 and take lots of photos. There are some posted in the photo section of this site. I do recommend you take a look at the Mallincam DS287C camera that can stack and

Why a UC18 for imaging? Won’t you get much better imaging results with a eq mounted scope designed for that? Check the archive for previous detailed message on how another user set his up for remote

Hi Everyone,?I intend to purchase an Obsession 18" UC? telescope as soon as my upcoming surgery is behind me. I really would like to use this for Deep sky photography and? spectroscopic imaging .Am

Richard, GREAT use of my version fo the FilterSlide assembly! Congratulations, that is a great setup for the 18” UC!! -Roger

Wow you got it made Richard! Jim

Thought I'd share my UC18 setup. Filter changer software I like the temperature compensation of the focuser that makes slight adjustments as the night gets colder.? I have a temp probe plugged into

Hello, yes, I already contacted Gary for equipment, despite his retirement, he helped me a lot and managed to provide me with equipment. Yesterday I had Dave from Obsession, the classic has long been

I needed an altitude drive cable for my 18 inch classic. I contacted Gary Myers with StellerCat and he supplied the cable. Perhaps he has the clamp sets you need.?Mark Watson

I needed an altitude drive c

Hello everyone, on the Obsession Telescope website, in the spare parts section, I cannot find the aluminum clamps for the secondary cage of the Classic models, mine is an 18” Classic and I want to

Obsession Classic 18/F4.5 secondary configuration request help Hello, I want to upgrade my Obsession Classic 18" F4.5 for imaging with equatorial platform and Full Frame sensor (24x36) My questions :

Thank you all for replying. I could not send him an email, every time I tried it failed go through .Verizon advised that something was wrong with his phone service every time I tried to call him.It's

Gary just posted this on the ServoCat group page: K9RX - Gary ( /g/ServoCAT/profile/414819 ) Oct 28 #6474 ( /g/ServoCAT/message/6474 ) We use 3/64" now on all sizes.

Has anyone replaced or does anyone know what size of the StellarCat drive wire.? Not the electrical ones, the motor drive wire on Altitude.? I can make the looped ends, but I really don't know the

I have a 15 UC. Maybe I can help. Chris

What do you need from him? He might be on vacation.

I know he was going to be out of the country a few weeks...