Quote:
Originally Posted by Peter Ward
Ah..yes...forgot to mention it my Frankencam configuration.
I'm running an AstroDon set in the FW7 but the h-alpha is 5nm.
Just ordered the 3nm....ouch! A little eyewatering in $A.
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Thanks Peter -
no wonder you have plenty of signal with the QHY600.
The IMX455 chip has a QE of
68% for Ha at 656 nm and
84% for OIII at 500 nm.
That's the new technology for you.
cheers
Allan