Quote:
Originally Posted by Jasp05
What kind of tweaks are you referring to rick?
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Hi Aaron,
If you're trying to image at fast focal ratios the spacing from the sensor to the lens, adjusted to compensate for the thickness and refractive index of the filters, needs to be correct within a fraction of a millimetre to minimise field curvature. You also need to make sure there's no tilt. I'm getting fairly decent results from an ASI1600 and a selection of camera lenses now but it has taken some experimentation with thin shims and spacers to get there.
Cheers,
Rick.