Focus issues with Nexstar 8SE...
... and it's not what you think.
My 8SE is visually tack sharp with my assortment of eyepieces, however I can never achieve decent focus when I've got the camera hanging off its arse. What "appears" to be in focus is quite soft, I'm not sure if it's a back focus issue or a collimation issue (usual collimation tests seems quite good).
Any ideas?
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