Hi Wren,
I find my 3-6mm Nagler is a great eyepiece for planetary and doubles. Very sharp and good contrast, and ideal for nights of variable seeing, plus 10mm eye-relief makes it very comfortable.
Maybe the purists might be able to pick a slightly better view with a top of the range fixed eyepiece- but I'll leave it up to them to comment... I find the ability to find the ideal power for the conditions a real bonus (and it holds focus across the magnification range).
I have seen them advertised second-hand here occasionally.
All the best,
Dean
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