Quote:
Originally Posted by MortonH
The comments I've read were all about the primary being undersized, not an issue with the baffling. The corrector in a Mak-Cass diverges the rays slightly so the primary mirror needs to be larger than the corrector otherwise some light is lost.
Is there something that confirms the issue has been addressed?
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Were they measuring the size of the primary and path of the light rays with the "Torch test"? That's been deemed as inaccurate now. A laser test was developed that's far more accurate. Maybe its a different issue, but there was also a vignetting issue that reduced effective aperture due to the rear baffle being too narrow.
The new versions have a wider rear baffle. Confirmed by a user on CN who spoke with an Orion engineer who confirmed it. But, the new Skywatcher and Orion Mak's are now working at the advertised aperture.