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Old 24-07-2018, 09:14 PM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 7,460
Basically yes....
I have an ASI 174MM I use for solar imaging but find I need an effective focal length >1000mm for it to work "well" for me.
I recently purchased the ASI 183, with much smaller pixels for use on the ED80 (600mm focal length) but this was returned to ZWO due to "technical issues when imaging extreme narrowband" - ie Ha solar!
They replaced it with an ASI 1600MM which also has smaller pixels than the ASI 174 and I'm testing it at the moment......
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