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RoboFocus and NGFC
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Soon after purchasing the SBIG ST7-ME I quickly learned that at a focal lengthof 2000 - 3000mm electronic focussing is essential. I purchased the NGF-C and RoboFocus. This image shows the combination fitted to the LX200.
This is a web site about photography, amateur astronomy, astrophotography, general amateur astronomy and telescope information, by Roger Groom based in Western Australia. Photography is copyright, see copyright info

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