Planning to photograph the Continental U.S.' first total solar eclipse in 38 years?

As long as a year ago, many photographers made reservations to ensure they would be in the direct path of the totality of the upcoming total solar eclipse. It takes place next Monday, August 21. The last total solar eclipse seen in the Continental U.S. occurred in 1979. Fortunately for photographers the totality of the approaching total solar eclipse will be seen in parts of fourteen states, so there are plenty of places to setup one's gear to make full eclipse images.

For those unsure of what it is, a total solar eclipse is when the disk of the moon completely blocks out the disk of the sun. This will be seen in a path across the U.S. from Oregon to South Carolina, about 70 miles wide, called the “path of totality.” Outside that “path,” those viewing the eclipse will only see a partial eclipse. The further away watchers are located from the “path,” the less sun will be hidden behind the moon.

Understanding and Achieving Image Focus and Sharpness: Part I

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 this multi-part series, we'll discuss what it takes to make a photograph look sharp. We'll look at how to successfully focus your camera on your chosen subject, and how to make your well focused image actually look sharp.

In Part I we'll look at how modern digital cameras autofocus (AF), and what factors influence AF systems' ability to focus quickly and accurately.