Baader UFC S70 / C11/C9.25 Hyperstar, SC, HD Telescope-Adapter (optical height: 4,1 mm)

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Baader UFC S70 / C11/C9.25 Hyperstar, SC, HD Telescope-Adapter (optical height: 4,1 mm)

# 2459132

€ 78.00 Price excl. German VAT tax (19%): € 65.55

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  • Baader UFC S70 / C11/C9.25 Hyperstar, SC, HD Adapter
  • telescope-sided C11/C9.25 Hyperstar, SC and EdgeHD Adapter
  • camera-sided with S70 dovetail
  • can be adapted via the S70 dovetail to the UFC filter base #2459110 as well as to UFC extensions
  • Please note the below description on Hyperstar Adaptation

Product Questions and Answers

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I have a hyperstar 9.25 and a QHY 294c. This adapter (Baader UFC S70 / C11/C9.25 Hyperstar, SC, HD Telescope-Adapter), the baader UFC, and the Baader UFC T-2 (m) Camera-Adapter is enough to have good backfocus?
Question by: Rafael Sampaio on Apr 12, 2021 12:33:00 AM | 1 Answer(s)

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I have a Celestron 9.25" with Hyperstar v3 and would like to connect ASI 2600 MM Pro mono to it. Can you verify (or correct) my calculations?

Hyperstar 9.25 has back focus of 59.7mm. To get this length, I'll use:
- hyperstar 9.25 adapter (#2459132) is 4.1mm
- filterchange base (#2459110) is 13mm
- installed Baader filter 2" which effectively is -0.7mm
- extender (#2459141) is 5mm
- varilock (#2459145) set to 18.7mm
- T-2 adapter (#2459115) is 2mm
Question by: Dr. Tomek Mrugalski on Oct 9, 2023 11:32:00 PM | 1 Answer(s)

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Important note on Hyperstar-Adaptation

The distances for adapting a camera to the Hyperstar system must be done with a precision of +/-0.3mm or better, otherwise the image quality will suffer. Please take a look at the following image showing the necessary Backfocus.

Example: A Celestron C11 has got a backfocus of 59.7mm; in addition, the focus shifts 0.66 in the extrafocal direction, if you use filters with a thickness of 2mm (as they are usually used for 2"/M48-housings). As a rule of thumb, a filter moves the focus in the extrafocal direction for 1/3 of the filters thickness. Substract the flange focal distance of the camera from this value (runded 60.4mm). The remaining distance is adjusted by the UCF and its adapters. If you aren't sure, please let us know which Hyperstar and camera you will use, when you place an order.

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Additional Information

Manufacturer Baader Planetarium
SKU (#) 2459132
EAN Code 4047825033727
Net weight (kg) 0.02
Optical length (mm) 4,1
Inner Diameter / Clear Aperture (mm) 64,3
Outer Diameter 75
Outer Connection (eyepiece/-camera-sided) S70
Type of Adapter Expanding Adapter

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