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Dave,
Be carefull buying the cheaper widefield eyepieces for use in your F5 scope. These budget widefields do not work well at faster F-ratios like F5. The best budget priced semi-widefield eyepiece for use in your F5 scope are the GSO Superviews which are sold by Andrews and Bintel. They only have a 65 deg AFOV compared to an 80 deg AFOV of some of the budget widefields but an 80 deg AFOV is no use when the outer 50% of the FOV contains nothing but out of focus seagulls. Your best option IMO for starters is the 2" 30mm GSO Superview. I own 1 of these and whilst not quite as good as my 27mm TV Panoptic it isn't $500 either. It performs exceptionally well considering its price and importantly works well at F5 giving sharp views over at least 80% of the FOV.
CS-John B
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