Thanks for focuser answers
Dear dave and Gary,
Thanks for your responses. I will include a photo and other info. It is a Williams Optics and photo shows nut behind allum key tensioner. What you have said makes sense. I will adjust allum key tonight with camera on back. Dave how do you find the C8 on the heq5 because we have just ordered the the equipment to remove our other school scope (celestron c8) scope from the wedge mount and attach a dovetail bar and guide scope rings. We hope we will be able to get closer to things we are photographing (only beginners) that our wonderfull Skywatcher ED80 allows us to.
Mark
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