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Message: <blockquote data-quote="Cornish Chough" data-source="post: 1409691" data-attributes="member: 73770">I've had an Opticron ES80  scope for nearly 18 months now and find the 20 - 60 zoom eyepiece more than adequate for sea watching. I start at 20 times and zoom in closer when I pick up something of interest.In most instances it works fine although heat haze can be a problem at especially at maximum zoom.Not everyone's choice probably but it works for me, I managed to pick up some Common Scoter over half a mile offshore near Penzance a week or two ago and some Razorbills off Godrevy this afternoon.Maybe I wouldn't have had so much luck with a wide angle eyepiece?</blockquote>