I understand the closer you are to the subject and the greater the focal length, the lower the depth of field will be. However, how do these compare with each other?
i.e. if I want the minimum depth of field, for portraits etc, should I zoom out and go closer to the subject or stand further away and zoom in?
Stand further away. Zoom to about 85mm. Open up your lens (smaller numbers) and faster shutter speed. Set camera to aperture priority. Now having said all of that, I find it is fun to zoom out and move really close to children, especially boys with big ears.
Stand further away. Zoom to about 85mm. Open up your lens (smaller numbers) and faster shutter speed. Set camera to aperture priority. Now having said all of that, I find it is fun to zoom out and move really close to children, especially boys with big ears.
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Go near to your subject, and do everything that the above answer states. The more you zoom the more you compromise on the quality/sharpness.(optics!)
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Even though telephoto lenses appear to create a much shallower depth of field, this is mainly because they are often used to make the subject appear bigger when one is unable to get closer.
If the subject occupies the same fraction of the viewfinder (constant magnification) for both a telephoto and a wide angle lens, the total depth of field is virtually constant with focal length. This would of course require you to either get much closer with a wide angle lens or much further with a telephoto lens.
In other words,… if you want to have the same depth of field using a telephoto, encompass the same frame content (composition) as you would with any other focal length… walk away and zoom in.
Steve R. Says, "Zoom to about 85mm. Open up your lens (smaller numbers) and faster shutter speed. Set camera to aperture priority" This is totally impossible since, in aperture priority, you can’t control shutter speed.
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Real Photographers earn income, the rest are just Picture-Takers.