Influence factors of the depth of field

The so-called depth of field, the thing is that the jvc gz-mg21u charger photos on popular image before and after the clear range. The main factors affect the size of the depth of field is the size of the focal length of the lens aperture, and the length of the shooting distance.

Aperture has two functions, a is the light control, the other is a is the size of the it directly influences the size of the depth of field. When you were filming the scene before and after all hope is very clear, can adjust aperture as far jvc gz-mg20u charger as possible to small, that is open to the aperture and throw the ambassador scenery, such as us F16, F22. Conversely, can open and throw the scenery ambassador aperture, such as F2.8, F5.6. In the adjustment of the aperture, while also note the exposure will also be changing. At this time, the shutter speed should be adjusted to achieve the balance.

When filming the aperture of the same jvc aa-vf8 charger size, the focal length of the lens is unchanged, the direct object more far, the picture clear before and after the greater scope; Conversely, when you focus is very close in direct object, the scenery of the scope of clear before and after is relatively small.

When aperture size unchanged, be taken the position of the object will remain unchanged, the use of the short focal lens photography before and after the jvc gz-mg30u charger scenery is clear. The focal length of the lens is longer, the scenery is not clear before and after. That is, when using wide-angle lens depth of field clear range is big, use, telephoto lenses, its clear range is relatively are much smaller.

In short, beginners should remember this photographer and one of the most fundamental principles:

The larger the aperture, the more depth to the small; The smaller the aperture, the depth of field.

The thing is near, the more depth to the small; From the more distant objects, the depth of field.

The jvc gz-mg365 charger longer the focal length, the more depth to the small; The shorter the focal length, the depth of field.