Selecting the shutter speed
when you use a
longer lens and you want the images to be sharp - you will need to increase
the shutter speed – a very general rule with 35mm film cameras in selecting
the shutter speed is that it should match the focal length of the lens
–
so
a 50mm or standard lens would need a shutter speed of 1/50 ( 1/60)
sec
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With a 200mm
telephoto lens camera shake is more likely and the shutter speed would be 1/200 |
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.
and
with a 20mm wide angle where camera shake is not so critical you
would be able to work with 1/20 sec
. |
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Because the ccd
of a digital cameras is a different size than the 35mm film, these shutter
speed would apply to the focal length of the lens not the conversion
or equivalent 35mm film lens.