Quote:
Originally Posted by skysurfer
I'd rather buy a Canon 600mm f/4L (US$11k) which can also be used visually with a $2 Bunnings/Mitre10 PVC socket adapter for 1.25" eyepieces.
That is a real 15cm APO f/4 and using a barlow is no problem.
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Phew, just as well the adaptor is so cheap. That will totally make it economical
Plus you get 16 whole elements in 12 groups, super deal (lenses per dollar)