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Yeah, agree, they are a very tempting range. The only concern I have is that with my fast f/5 Televue refractors, how will they go? I've recently tried some cheaper (than I usually buy) eyepieces, namely the Orion Stratus 24mm and TMB Planetary 9mm, and both show noticeable (to my eyes) field curvature in my NP127is. By contrast, my Pentax XW 7mm shows no detectable curvature - but then the XW costs A LOT more than the Orion Stratus and TMB put together! So I wonder what sort of picture the ES range would give with a TV f/5 refractor. Fox!
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