The optical designers spent a great deal of time using powerful computer simulation techniques to support a quest to maximize the cine zoom lens MTF according to the principles described. For the wide-angle CN-E14.5 –60mm T2.6 lens the final simulation showed that a quite tight control of lens MTF could be maintained from picture center to the limits of the Middle Zone. Further, this could also be tightly controlled over the full 4.1x zoom range of the lens.
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