Connecting CCD to Tak FSQ85
Posted 26 March 2014 - 06:52 PM
The Atik needs 18mm of back focus. I have a whole bunch of Tak stuff lying around and none of the pieces let me connect other than as a 1.25" nosepiece which will have too much flex.
Are there any Tak experts out there that can tell me what pieces I need starting at the end of the camera angle adjuster and ending by threading into the Atik unit? It's got me baffled and these Tak adapters are expensive so I don't want to go by trial and error.
Posted 26 March 2014 - 08:03 PM
I did that for my QSI. My adapter provides exactly 56mm back focus (accounting for the filter as well). That way I can use the CA-35/custom adapter combo with the FSQ106/reducer and TOA130/reducer. You may not be interested in the reducer but it's nice to have the option. Most takahashi configurations terminate with the CA-35 (TCA-1030) as the second to last piece. The back focus from the CA-35 is always 56mm so once you have a custom adapter that couples your CCD with the CA-35 and provides the required back focus your are set. There are a few exceptions like the FS-60.
There may be other ways to achieve this but this my experience. And yes those Tak adapters are very pricey!
You can find the system chart for the FSQ85 here
Posted 27 March 2014 - 02:07 PM
Posted 27 March 2014 - 02:21 PM
Posted 27 March 2014 - 03:55 PM
Posted 27 March 2014 - 05:25 PM
Posted 27 March 2014 - 06:33 PM
Posted 27 March 2014 - 07:13 PM
Posted 27 March 2014 - 07:24 PM
Posted 27 March 2014 - 08:06 PM
Reducer + TCA-1020 (aka CA-35) + custom adapter for 56mm bf + QSI583wsg.
As far as I know the bacfocus is always 56mm from the CA-35.
There are three different CA-35's for different scopes and they always have the same male thread on the camera side and they all require 56mm back focus.