Thanks very much for that. I've seen a 6mm televue Delos second hand for $270. Would that be significantly better than the ES? With postage, it'd be around double the price.
Quote:
Originally Posted by MortonH
For planetary I'd go for the ES 6.7mm. I have the Pentax XF 8.5mm as well and it's great for deep sky and has excellent throughput, but the ES has a flatter field and much wider view. In your non-tracking Dob I reckon the ES is more useful.
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