Quote:
Originally Posted by Allan
A funny thing happened at Bintel today. I tried parting ways with a decent chunk of money, and they wouldn't take it. In their opinion the 31 Nagler and 21 Ethos were too much like similar eyepieces, and they thought I would be much better off with the 17 Ethos.
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Not good to be in an environment when you don't feel comfortable to make the purchase you feel like, and then come home empty handed.
The 13 and 17 are much closer in purpose than the 31 and 21 mm- I would still go for a 21mm as a 4.2mm pupil sits in a very special place , particularly in a dark sky - you can always fill in the gap later !