[MortonH]

Originally Posted by AG Hybrid

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.

That's good to know.