So, you would recommend the xw 10 in a 12". with a 31mm nagler. with the 2x and the 2.5x that will give me 31, 15.5, 10, 7.75, 5, 2.5. That is also a good spread. Will the 2.5 be completely useless or ok on planets. Any thoughts on the barlow question. I am just wondering why people tend to have every size rather than a couple of them and a couple of barlows.
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