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Old 29-05-2010, 05:57 PM
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telemarker (Keith)
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telemarker is offline
Join Date: Mar 2008
Location: Canberra, Australia
Posts: 601
According to the SBIG site they say that with 1.25" filters they'll vignette in scopes f6 and faster. I've a full set of 1.25" lrgb and narrowband filters that I've not tried with the ST-8300 yet (ps looking for a 7 position motorized wheel). None of my scopes are faster than f7.5, so I'll be trying the 1.25" filters before I consider upgrading.
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