Option d. If John wants to capture an image of star trails, the effect that he has to consider for his work would be the long exposure.
This is the term that is used to refer to the form of photography that involves the capturing of images after the shutter of a camera has been left open for a given length of time. This is what is also called the slow shutter photography.
Hence we can conclude that the way that the way that John would have to capture an image of star trails would be through the use of the long exposure way of photography.
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If John wants to capture an image of star trails. The effect he should consider for his work is: D. long exposure.
Long exposure is an effect that is use to capture the image of a star trails based on the fact when a photographer is making use of long exposure technique he/she can tend to make use of shutter speed and as well leave the camera open for a longer period of time so as to effectively capture what he or intend to capture.
Long exposure is perfect for capturing the image of a star trails as the camera can be left open for a long or lengthy period of time during capturing.
Therefore the correct option is D.
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