In photography, the exposure control of the relationship between the focal length and depth of field

Say simply, is the focus of the depth of SHARP Camcorder Battery field before and after clear range. Control of the depth of field of three elements were aperture, focal length and shooting distance. In the shooting distance and aperture under the condition of invariable, the shorter the focal length of the lens, the more depth to the deep; The longer the focal length of the lens, the shallow depth of field. In the shooting distance and the focal length under the condition of invariable, the smaller the aperture, the more depth to the deep; The greater the aperture, the shallow depth of field, in the aperture and the same in the focal length, filming the farther the distance, the deeper the depth of field, the closer the shooting, the shallow depth of field.

In aperture coefficient and shooting distance are the same, the shorter the focal length of the lens of photography, the larger the range of the sharp bt-h22u battery depth of field; The longer the focal length of the lens, the smaller the scope of the depth of field. This is because the focal length of the focal length lens short than long lens, from different distance of before and after the scenery in the light by the formation of the focus with (focal depth) to be much more narrow, so there would be more flare into acceptable cleaning area.

The actual shooting in pursuit of shallow depth sharp vl-e34u battery of field effect can not blindly, and neglected the graphics. A long focal length is formed quite shallow depth of field effect, but the focal length too long also lose some graphics, focal length is too large, very easy to produce the edge blur and purple edge phenomenon.





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