Quote:
Originally Posted by Martin Pugh
A striking image Peter.
could you post a pic of your image train please? I am interested on how you are getting your f9 (?) RC to f15. Are you seeing huge curvature values with the STX chip?
cheers
Martin
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Thanks Martin....the attached file may help. This assembly goes straight into a standard AP2" fitting on the RCOS.
The Baader FFC has a fairly flat projection, but its narrow aperture causes vignetting requires images to be cropped. There is also some sphero-chromatism.
Using more (or less) RC instrument adapter rings allows to you adjust the f-ratio.