Quote:
Originally Posted by EricB
Thanks everyone for your feedback.
Yes, it's a bad barlow.
LewisM and Shiraz: Interesting what you say. Of the 4 GSO eye pieces I have, the 10mm is the best. It's actually not that far behind the ES 11 mm I have just bought. The 25 and 15mm or pretty average and the 6mm is ordinary. There seems to be some inconsistency between GSO products.
Eric
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Good to have that sorted.
My eyepieces are also variable, except my 6mm is the very good one - and they all work OK with a Barlow. However, for the intended purpose and for the money, most GSO gear works very well. I guess it was a bit unfair and misleading to compare their products with those costing 5 times as much, as I did in an earlier post.