Peter
I agree - I do have a street light to contend with so I use a CLS filter to try to combat it.
The combo gives about 1.48 arc secs according to the SBIG site. Thats 600mm FL with pixel size of 5.4 microns (Unbinned - its OSC anyway)
I did also have the wrong versions up on the site so I've now fixed that.
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