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Thanks guys. Appreciate your feedback.
gbeal ... in reply to your question, I've tried varying the tension knob to see if it makes much difference. Sadly ... only a little. The problem, as I've indicated, is directly related to the turning of the focusing knobs. The instant I begin turning them .. the tube (which moves in and out - the focusing tube itself) moves a little up and down as I rack the focuser in and out. It's a small but perceptible wiggle. How can I describe this? It's like a see-sawing action. When looking through a cheshire you can actually see the tube make a slight upwards movement when you turn the wheels one way ... and a downwards movement when you go the other. It's like the movement your hand makes when you wave at someone ... only not quite so much. It's as if someone were actually moving the tube up and down as you are looking down it.
Does that make any sense. Anyone??????
Cheers
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