Leica MPの取扱説明書・マニュアル [全114ページ 0.89MB]
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gizport - 2013-09-17
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73Depth of field scaleThe plane – parallel to the film – to which thelens is set, is depicted with maximum sharpness.This maximum sharpness gradually diminishesin front of and behind the set plane, which means that there is a certain depth that is repro-duced sharply in the picture: this is the depth offield. It depends on the distance, the focal lengthof the lens (together these give the enlargement)and the set aperture. Stopping down, i.e. settinga higher value, increases the depth of field whilestopping up, i.e. setting a lower value, reduces it.With the depth of field scale (16c) it is possibleto read off the depth of field range at the currently set distance on the distance settingring (17).For example, if the LEICA SUMMILUX-M 50mmf/1.4 lens is set to 5m, the depth of field at f/4is from approximately 4m to 8m. If you then stopdown to f/11 with the same distance, the depthof field is from 3m to around 20m.
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