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This was a prototype lens. A bit zony looking wavefront and a Strehl ratio of 0.83 in Green light ( ie 83% of possible available light into the Airy Disc ) . Not particularly brilliant for high power , but the color correction is good and should make a great deep sky imaging scope which doesn't particularly push the optical quality. The error is mostly consisted of Spherical Aberration
This was only a sample of one of course. I'va attached a screen from Wolfgang's test report .
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