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Old 26-09-2016, 10:21 PM
Wavytone
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Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Not really, no.

For astrophotography old-school zooms are too slow and not really sharp enough to be any good.

Spectroscopy... not likely either, I don't think anyone would consider using a lens as big or as complex as that.
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