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If D is diagonal and F is focal length, lens angle θ is | |
A. | θ = tan-1 (D/F) [Wrong Answer] |
B. | θ = 2 tan-1 (D/F) [Wrong Answer] |
C. | θ = tan-1 (D/2F) [Wrong Answer] |
D. | θ = 2 tan-1 (D/2F) [Correct Answer] |
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