Determine the angular field of view of a camera having a 230mm. square format and a focal length of 150mm.
- 94.63°
- 84.23°
- 72.46°
- 62.84°
\[
\alpha = 2\arctan\frac{d}{2f}
\]
\[
d = a\sqrt2
\]
\[
d = 230mm.\sqrt2
\]
\[
d = 325.27mm.
\]
\[
\alpha = 2\arctan\frac{325.27mm.}{2(150mm.)}
\]
\[
\alpha = 94.63^{\circ} \leftarrow \text{answer}
\]