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I have noticed that near the edge of the 14 there is a bit of "something", either "out of focus (field curvature)" or "coma (a coma corrector may help to answer this)" or something else. It is interesting that both the 10 and 7 appear not to suffer from this problem, as far as I have seen so far. The 30 appeared to be more like a "10". I was expecting the 30 to have "more" of the same problem as the 14, picturing a sort of graph in my head of focal length vs degree of "field curvature" if you like.
Yes, I will definately be bringing the 30 with me to Ballarat for others to give their more experienced opinion. Maybe I should charge "rent" on it!
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