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フィルムカメラ Olympus XAのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Olympus XA 24 ページ。 Olympus xa xa camera-film: instruction manual

PHOTOGRAPHIC TECHNIQUES

Making use of "out of

focus" background or

foreground effects

Deep-focus effects

Depth of field is the area of accept-

able sharpness in front of and be-

hind the subject in focus. The larg-

er the F-number used (from F2.8

to F22), the deeper the depth of

field. On the contrary, the smaller

the F-number (from F22 to F2.8),

the shallower this zone of accept-

able sharpness.

The table on the opposite page

shows that when the camera-to-

subject distance is 1m, the depth

of field at F4 ranges from 0.91m

to 1.12m.