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Friday, August 12, 2011

Hyperfocal distance for landscape photography


For landscape photography enthusiasts, the term hyperfocal distance (the distance hiperfocal) may not be so foreign. But for beginners and learners who started like landscape photography like me, this term certainly worth exploring further.


Hyperfocal distance is the distance where all objects can be incorporated into the focus of "acceptable". Based on its value, there are two senses of the hyperfocal distance. First, the hyperfocal distance is the shortest distance in which the lens can be focused while objects at a distance of infinity remains sharp; the focal distance with a maximum depth of field. When the lens is focused at this distance, all objects at a distance of half the hyperfocal distance to infinity will be sharp. The second sense, hyperfocal distance is the distance in which all objects appear sharp, for the lens focused on infinity point. These two terms need not cause confusion because it is basically the same.


Hyperfocal Distance


The point here is on landscape photography, all of the object to be photographed must be sharp, there is no out of focus, the background blur (bokeh) or whatever (within certain tolerance limits).objects that are close in front of you will not look sharp.


Normal & Wide Lens


On the concept of landscape photography and the hyperfocal distance, the use of lenses is crucial. Typically, the lens is suitable for application of hyperfocal distance is a normal lens and wide-angle. This is because this type of lens has a hyperfocal distance is relatively short if the aperture is set on a large number (small aperture). For example hyperfocal distance for 17mm lens which is set using the aperture 1 / 16 on a 35mm camera (full frame) is about 0.6 meters. So everything is starting 0.3 meters to infinity will appear sharp.

Tele lens

Telephoto lens is very rarely used for applications such as the hyperfocal distance for this lens has a hyperfocal distance is relatively far away. For example hyperfocal distance for a 200mm lens aperture is set to use 1 / 16 on a 35mm camera (full frame) is about 83 meters! So everything is starting 41.5 meters to infinity will appear sharp. Therefore, a telephoto lens is less suitable for landscape photography. 

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