![]() ![]() ![]() If you do fall short when focusing at the hyperfocal distance, even by one inch (2.5cm), you won’t get the elements at the horizon in focus. This is a crucial moment, you must be sure you’re not falling short. You've also double checked it using PhotoPills DoF Augmented Reality tool. You've measure the distance by walking the "equivalent" number of steps. You set the automatic focus mode and use a torch to light a rock located at more or less the hyperfocal distance. You've calculated the hyperfocal distance and you're getting ready to make focus at it. You want to capture as many stars as possible so you set a short focal length (for example, 14mm) to capture as much sky as possible. Let's imagine for a moment that you're at the shooting spot ready to enjoy a great night escape. This is the reason it is said that you don't need to make focus again when closing the aperture, when you have previously made focus at the hyperfocal distance. As a result, when closing the aperture, by shooting with the lens focused at the previous hyperfocal distance, all the elements at the horizon will remain in focus. Therefore, if you make focus at the hyperfocal distance for the widest aperture of your lens, let's say f/2.8, when you decide to close the aperture, you will not have to make focus at the new hyperfocal distance, because it is shorter than the previous one. On the contrary, hyperfocal distance decreases by decreasing focal length or aperture (larger f-numbers: f/8, f/11), increasing depth of field. Notice that hyperfocal distance increases when increasing focal length or aperture (smaller f-numbers: f/2.8, f/4), reducing depth of field. Just introduce your camera, focal length and aperture and read the values on the chart. The hyperfocal distance chart is the fastest way to calculate the hyperfocal distance for the settings you need. This makes calculating the hyperfocal distances a “must” for landscape and night photographers when the goal is to maximize depth of field shooting with short focal lengths (7mm to 35mm). You know that when the lens is focused at the hyperfocal distance, everything that falls at distances from half of this distance out to infinity will be acceptably sharp in the image. If you want all the elements at the horizon (mountains, buildings, stars, etc) to be in sharp focus in the image, make focus at the hyperfocal distance! ![]()
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