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Old 05-05-2011, 09:42 AM
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SkyViking (Rolf)
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Join Date: Aug 2009
Location: Waitakere Ranges, New Zealand
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Quote:
Originally Posted by strongmanmike View Post
Look forward to the new camera....you should get an FLI though
Mike
Hehe yeah I have thought long about the FLI ML8300 but it'd be quite a bit more expensive all up because of the filter wheel and off-axis guider I'd need to buy separately, plus larger filters as well. Then all put together it'll have much longer backfocus too. The total backfocus of the QSI is around 5cm, that includes OAG and filterwheel .
With FLI I'd need a larger secondary mirror to avoid vignetting. With that comes larger central obstruction = less image resolution/contrast, which I've now realised the importance of while judging the test images from my new OTA... then it starts to look like a slippery slope

Of course with an FLI I'd be getting better cooling undoubtedly, and perhaps better electronics (although not sure about that) and faster download times - but this comes at a much steeper overall price tag plus the disadvantages mentioned above. So as long as we're talking about a KAF-8300 camera the QSI seems the way to go I must say.
For larger chip sizes though yeah I think I'd clearly favour FLI
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