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Old 10-04-2018, 08:38 AM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Rob,
Thanks very much for adding that very useful data.

Simbad gives a 5.46 mag in the J band (1.05 - 1.34 micron) - this is a bit of a stretch for the Canon - The Full Mod, both internal filters removed.
This does allow recording to at least 8000A, where the 2nd order spectrum kicks in.
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