Despite what you might have heard... there is such a thing as "too close" when taking a picture of a cow. We were out at the ranch meeting our freind Jenna's goat (a school project). Yours truly had the idea of getting a close of the cow which was about a foot away. One should always as a cow to stick out his tongue for a measurement, rather than assuming you're far enough way for safety.
It took quite a few squirts of lens cleaner to restore order.
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