Focusing my DSLR on my Dob

I have a homemade 10" f/5.6 Dob, I have always used it for visual observing. I want to use the Dob as a lens for my DSLR, if I have the correct understanding I need a low profile focuser to achieve focus? IOW I have to get the camera much closer then what is required when using eyepieces.

My current focuser is also homemade so I am looking for a decent 2" focuser if someone can make a recommendation, I'd prefer to spend less then $175 if possible.

Thanks

Buy a True-2 adapter from http://www.telescopead​apters.com/, and buy a 2" Barlow (like this). You unscrew the cell from the Barlow and attach it to the True-2. You'll magnify your view a little but at least you'll be able to achieve focus. It should cost you less than the $175 you want to spend.


Plus it saves you the hassle of buying and installing a new focuser.

katodog wrote in post #15616665
Buy a True-2 adapter from http://www.telescopead​apters.com/, and buy a 2" Barlow (like this). You unscrew the cell from the Barlow and attach it to the True-2. You'll magnify your view a little but at least you'll be able to achieve focus. It should cost you less than the $175 you want to spend.

Plus it saves you the hassle of buying and installing a new focuser.

Well I already have a T-Ring adapter mounted to a 2" aluminum tube that can fit into my current focuser. After seeing the diagram for the True-2, it seems their setup would move my camera further away, if that is correct then maybe I need to play with my setup more to see if I can achieve focus.

You unscrew the optical cell from the Barlow and screw it to the filter threads of your adapter. I recommended the True-2 and that particular Barlow because the threads on the cell match 2" filter threads, so you can connect them easily.


The True-2 attaches to the mount of the camera, and allows you to insert the camera all the way in. There's no extra tubes necessary, and attaching the Barlow cell will allow you to achieve focus.

katodog wrote in post #15617725
You unscrew the optical cell from the Barlow and screw it to the filter threads of your adapter. I recommended the True-2 and that particular Barlow because the threads on the cell match 2" filter threads, so you can connect them easily.

The True-2 attaches to the mount of the camera, and allows you to insert the camera all the way in. There's no extra tubes necessary, and attaching the Barlow cell will allow you to achieve focus.

Okay thanks.