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Image quality and resolution are directly related: the higher the resolution, the better the image quality. For conventional
photography, high resolution is inherently achieved through the use of 35 mm film stock. In digital photography, the size
of the camera's digital sensor determines the degree of resolution that can be achieved.
Avoid using a low-resolution digital camera. After images are loaded into the camera's memory and displayed on a monitor,
images are often smaller than expected or there are discernible pixels (image pixelation) when the images are enlarged on
the monitor or output to a printer.
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Images that look fine on a computer screen may appear coarse or grainy when printed, even at the 2 inch x 2 inch dimension.
This can be attributed to the differences in image resolution for the display monitor and the digital printer, with respect
to the amount of image data available. Digital printers have variable resolution settings, and the proper setting needs to
be selected to avoid having an image appear fuzzy or grainy. However, no printer resolution setting can adjust for too little
data in the image caused by use of an inappropriate camera lens or low-resolution digital camera.
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The subject’s face should be the central or principal point of focus. It may be necessary to adjust the distance setting on
the camera’s lens once the subject is framed in the scene. If excessive adjustments are needed to focus properly, the lens
being used may not have a suitable focal length (approximately 105 mm) and may cause unwanted distortions in the image.
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