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Confirmed that the star on the guide chip is the same shape as the star on the imaging chip. Ive been speaking to Planewave and with the test images Ive provided them with, they said as the scope slews across the sky from one horizon to the other, there is a minute amount of focus shift. this occurs from the optics moving appart or closer together which is magnified with the secondary mirror amplification, this produces some astigmatism in the image as the image goes out of focus slightly (about < 100micron) and hence the oval stars.
They recommend to refocus in various parts of the sky.
Has anyone else experienced this?
Im going to reenforce my secondary support system and see if that makes a difference.
Josh
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