Reducer for the UFC system:
- telescope side with RASA system plate
- camera side with S70 swallow tail
- can be adapted via the S70 dovetail to the UFC filter base as well as the UFC extensions
The universal filter changer, UFC: The Baader UFC system is a filter drawer that can be used for various telescopic and camera systems with a sufficiently large connection diameter, which is extremely short-lived at the same time but also absorbs filter sizes up to 50x50mm without vignetting. These properties are a condition in which the new, fast optics such as, Eg EdgeHD telescopes with Hyperstar and the new RASA devices from Celestron, as well as all other Prime-Focus Astrograves with suitable filters, on which a regular filter wheel would shade too much from the front opening. In addition, prime focus optics are inevitably equipped with a very short back focus and require a particularly space-saving filter drawer.
The UFC system can connect almost anything to everything by purchasing the same filter base housing and then simply selecting the necessary front and back plate of the UFC together with the spacer rings as required by the respective chip spacing. For this purpose, Baader offers a set of matching UFC extension sleeves as well as a S70 VariLock extension, which can be adjusted continuously from 15mm to 20mm, to keep the distance between the filter and the image plane as short as possible. All components are optimized in order to obtain the largest possible pass-through before the actual filter drawer, while still being able to precisely adjust the appropriate distance between the telescope and the chip. The filter drawer itself sits as close as possible in front of the camera, shading through the filters is minimized.