How to Calculate and Shoot Images with the Correct Depth of Field
Understanding “hyperfocal distance” – This resembles one of those technical terms reserved for professional photographer areas, but this is actually something you have understood, you can change the quality of the shots for any photographer.
In short, the hyperfocal distance (HFD) is the meeting point where everyone within the half of the hyperfocal distance to infinity falls within the depth of field or range of the focus … or simply the parameter that produced the greatest depth Of field.
For example, let’s say that the DFH for your camera and the current settings is 20 meters, if you had to focus on this point, all 10 meters to infinity is sharp or centered.
Now the hyperfocal distance each time it depends on four factors:
Adjusting the aperture
Lens focal length
Distance from the subject
So what is the meaning of this?
Well, many beginner farmers photographers make one of two mistakes. They focus is on infinity, that is, the longest distance (usually the horizon) or an object in the foreground.
In both cases, if the calculations are exhausted, you will have a sharp horizon and a blurred foreground (first shot above), or it will have to be the first clear plan and the rest of the image blurred.
A common mistake to make and can frustrate many photographers.
Let’s take an example to illustrate this.
Example hyperfocal distance
Let’s say you are taking a motif that is 20 feet and you want more than everything in focus and you use the camera and the following parameters:
Sensor Size: Full Frame (Canon EOS 5D Mark III)
The focal length of the lens: 50 mm
Subject distance: 20 feet
If you are going to focus the actual object at 20 feet away, close your concentration limit is 12.7 feet and your concentration limit is 47.7 feet. This means that about 12.7 feet and 47.7 feet further would be blurred.
Total depth of field (substance approach) = 35 feet
Now, once we confirm the HFD, that in this case the use of these parameters and a special camera (Sensor Size) is 34.3 feet, we can focus on that result gives us a very different.
Focusing 34.3 feet instead of 20 feet, and even if we centered past or behind the subject, our nearest concentration limit is at 17.15 feet (slightly more than before, but 12.7 feet just before the about Which is good because the subject is always on screen) and our distant border extends to infinity, which means that the whole previous topic must also be centered.
So all we are doing is to change the point where we focus and not any of the parameters, we can change what the final image is in the focus … cool!
I hope you can see the benefits of it?
I feel after taking hundreds of thousands of images in recent years, although I have not used all these cards and rules, I know for what instinct to focus for a better effect, but it has tons and tons of practice and analysis Of my photos in recent years.
It pays to play with it and learn as much as possible as this will certainly help in all kinds of photographs:
Weddings – Learn to concentrate for a better depth of field for group photos, portraits, etc.
Live Help Stock Photo – focus, depth of field, can make or break, hit, photography, whether, landscape, cityscape, portrait or photo of a product
Landscape Photography – Probably the most elaborate on which hyperfocal distance is important
Which lenses are best for hyperfocal distance?
Any of the standard (50mm) wide-angle (10mm-35mm) lens work well here because these lenses have a relatively short hyperfocal distance when set with large apertures such as f16. Therefore these lenses are the most used for landscape photography.
For example, a 16mm lens set to f16 on a full-screen sensor (Canon 5D Mark III and Nikon D800) has an HFD of only 1.8 feet. This means that if you focus on this point, everything from 0.9 feet to infinity would concentrate.
At the other end of the spectrum, a 200mm lens attached to F16 in a full-frame camera would have a hyperfocal distance of 274.1 feet, which means that you focus on that, you will get any of 137.05 feet at infinity. It is not necessary if the subject is at least 137 feet away and focus on the subject at about 50 or 100 feet, it would have a blurred background.