6. The picture size on ordinary 35-mm camera film is 24 x 36 mm. Focal lengths of lenses available for 35-mm cameras typically incdude 28, 35, 50 (the "standard" lens), 85, 100, 135, 200, and 300 mm, among others. Which of these lenses should be used to photograph the following objects, assuming the object is to fill most of the picture area? a) A cathedral 100 m high and 150 m long, at a distance of 150 m. b) An eagle with a wingspan of 2.0 m, at a distance of 15 m.

6. The picture size on ordinary 35-mm camera film is 24 x 36 mm. Focal lengths of lenses available for 35-mm cameras typically incdude 28, 35, 50 (the "standard" lens), 85, 100, 135, 200, and 300 mm, among others. Which of these lenses should be used to photograph the following objects, assuming the object is to fill most of the picture area? a) A cathedral 100 m high and 150 m long, at a distance of 150 m. b) An eagle with a wingspan of 2.0 m, at a distance of 15 m.