On Jupiter against an older Brandon and Celestron plossls it was right in the middle. The Brandon was sharp to the edge as Jupiter slid off the field. The
None of these have much eye relief, but Jupiter was kinda small at 200x in my 8" f5
Hello gul1337 and welcome to the forums!
Eye relief for a 6mm Orthoscopic is typically 0.76 x the focal length so your 6mm should have 4mm eye relief.
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