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Digital photography jargon c is for.....
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Camera shake describes the cause of blur as a result of unintentional movement of the camera during exposure.
Cure the problem by
Your lens will focus only subjects exactly on the focal plane to precise points ( and therefore sharp images) on the camera sensor.
Light coming from subjects either in front of or behind the focal plane will be converging or diverging cones of light dissected by the image sensor – and thus are recorded as fuzzy blurred circles. These are called circles of confusion.
When the recorded image is enlarged for display on a print or screen, the circles of confusion also become enlarged.
Depth of field limits are defined by when, after enlargement, the detrimental effects of circles of confusion upon sharpness are evident.
A Compact Camera is defined by having non interchangeable lens and an electronic viewfinder.
Summary – Despite the limitations to image quality and creative control, GREAT photos can still be achieved with compact cameras.
See the article top ten tips for taking digital photographs for more advice.
Composition describes the arrangement of everything included in the final image (so composition can be determined to an extent by cropping during post processing)
There are no absolute rules for composition, but there are some general guidelines to consider.
Remember – all photos primarily boil down to just two things COMPosition and ExpOSURE – think of having good COMPOSURE and you won't go far wrong.
Crop Factor is the ratio between the diagonal dimension of an image sensor and that of a 36mm x 24 mm full frame sensor.
It describes the amount of the image circle that is recorded on a smaller sensor compared to a full frame sensor for a given focal length.
Small sensors have high crop factors.
The higher the crop factor, the shorter the focal length to achieve the same field of view and magnification. As short focal lengths mean smaller aperture diameters – this limits the ability to create shallow depth of field with small sensors.
When using a lens designed for a full frame sensor on an a Dslr with a smaller sensor – multiplying the focal length by the crop factor gives the effective focal length/angle of view/magnification.
Eg a 200mm lens mounted on a Dslr with a crop factor of 2.0 – will give the same magnification as a 400mm lens mounted on a full frame camera.
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