Originally Posted by MattKing
What lens for 35mm format covers about 15 degrees? A 180mm lens covers 14 degrees, so that is close. A 150mm lens would be even closer .
I'd think the closest common focal length would be a 135mm, not a 180mm. 135mm is 10 percent shorter than 150mm, and 180mm is 20 percent longer than 150mm.
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