Thread: Long Focal Length and Speed - Where is it?
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Old 07-02-2019, 11:26 AM
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Atmos (Colin)
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It’s more important to consider aperture and imaging scale rather than focal length.
A 12” F/4 with an ASI183 will give an image scale of 0.4”/pixel. As Alex mentions though, their mechanics are built to a price point and leave a bit to be desired.
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