Baader 2" mounted set (3 filters total) of Ha, OIII and SII "fast filters" optimised for F1.8 to F3. These are the first gen filters of approx 10nm passband. Very good condition.
Perfect for a RASA or fast camera lenses. (Note these filters should not be used in F4 or slower systems and the pic below the Ha is looking at bottom of filter, hence colour of Ha looks funny...its silverish like the SII).
$550 posted to anywhere in Aus or NZ.
Last edited by speedyjim; 19-08-2021 at 07:52 AM.
Reason: sold
