Saturday, October 12, 2013

Saturday Showcase: What is depth of field?

Depth of field is the range of distance that appears acceptably sharp in a photograph. Factors that can affect the DOF can be the aperture & focusing distance, camera type, size of print and camera settings. You can actually see how the depth of field changes in the video. The acceptable focus range starts at 20/21 then moves up the measuring tape to about 31/32. As the depth of field moves, you can see how the few inches before and after the sharp points of the focal range are blurred. That blurriness is what the Japanese call bokeh. And bokeh is what really makes portrait photographers clamor for the faster lenses. The larger the aperture, means the more blur your lens can make. The number of aperture blades and shape of the blades helps determine the shapes of your bokeh too.

Lighthaus Camera has several large aperture lenses for sale. Among them the Canon 24-70 f/2.8 version II, the Nikkor 70-200 f/2.8 ED VR version II, the Sigma 18-35 f/1.8 DC HSM, etc.. If we don't have a lens in stock, we can order it for you. Lighthaus Camera has four locations to serve your photographic needs.



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