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We've been asked a few times recently on how to set up the Baader UFC for use with a DSLR and a range of wide-field imaging refracting telescopes. So we thought we would write a short blog on some ways this can be done.
UFC System chart
Let us start from the telescope side first. All the enquiries we have had, the wide field refractors have 2" barrel focusers, so there is our starting point. The telescope side of the UFC Base (to which everything else in the UFC system is connected to) uses Baader's S70 dovetail adaptors to allow the UFC to fit to telescopes. Looking at the UFC main diagram above (or checking our UFC telescope side adaptor blog: part 5 here) Baader do a 2" adaptor (#2459128) that allows 2"/SC male-thread accessories to be used.
Baader offer their 2" Nosepiece with 2" filter thread (Astro T-2 part #19 - #2408155) or their 2" Safety Kerf nosepiece with 2" filter thread (Astro T-2 part #19A - #2408156. The image below shows the latter 2" nosepiece attached to the UFC S70 2"/SC adaptor. Using one of these will allow the UFC to be attached to a telescope with a 2" focuser.
UFC S70 2"/SC adaptor with a 2" nosepiece attached
Moving away from the telescope side, we next encounter the UFC Base itself to which the telescope side and camera side adaptors attach and the filter slider is inserted into. You can read more about the UFC Base in part 2 of our series of blogs here.
For the filter slider either the 2" mounted, 2" unmounted or 50x50mm square versions can be used depending on what filters you currently have or may want to purchase. Using smaller filters (with one of the Aux holders) will likely cause vignetting depending on the size [age] of your camera's sensor). More information on the UFC sliders can be found in part 3 of our UFC blogs here.
Next we get to the camera side of the UFC Base.
There are three possible "routes" for attaching a DSLR camera:
Baader Protective T-ring with S52 dovetail (and T-2, M48 and 2" nosepiece) attachments.
So lets put all of this together. In the image below we have an example setup based on what we have written above. From right to left: we have
Baader UFC example imaging set up for use with a 2" barrel focuser and a T-ring
In a future blog we will look at other ways the UFC can be used for imaging purposes, including how to set the UFC up for use with focal reducers/field flatteners.