Image sharpness depends on multiple factors including focus.While it's true an image can't be sharp unless the subject is in focus, the converse is not necessarily true, that an image which is in focus, will necessarily be sharp. Image sharpness is fundamentally controlled by focus, but there are other important factors which enable in-focus images to be sharp.
In Part I we looked at how modern digital cameras autofocus (AF), and what factors influence AF systems' ability to focus quickly and accurately.
In Part II, we discussed choosing the best focus mode for a particular subject, manual or autofocus, or using them together, as well as single versus continuous focus, all to achieve a solid focus for a variety of situations common to travel photographers.
In Part III, we got to the nitty-gritty of using autofocus and manual focus, including looking at the different AF area and tracking modes, and focus locking methods.
In Part IV, below, we discuss photographer focus technique, and other factors which enable photographers to make sharp images.
On January 21, 2014, Michael Takeda, Purdue University Exponent newspaper photo editor, was attempting to photograph the aftermath of an on campus shooting in the Electrical Engineering Building.
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