​Use focus to create shallow depth of field compositions

Choose the right focus, for the novice photographer can be very important basic knowledge, if the focus is wrong, canvas prints not only cannot take the photos they want, but also will hinder the progress of photography technology. Therefore, this article will review the relationship between focus and depth of field with you, and analyze the effect of focus falling in different positions on photos. Now, class!

The relationship between focus and depth of field

When shooting a photo, the focus must be the clearest, canvas prints australia and the front and back of the focal point will be affected by the depth of field, especially if the three elements are in line with the shallow depth of field. The farther away the object is from the focus, the shallower the depth of field will be, that is, the more blurred it will be. Let's take a look at the following examples:

1. Focus on the flowers in the middle, foreground and background are also blurred

Focus on the red flowers in the center because the shallow depth of field blurs the front and rear

2. Focus on the foreground, the foreground is clear and the background is fuzzy

Focus on the flowers in the foreground, using the background of the windmill as a foil, highlights the foreground of the main body

3. Frame the picture with focus on the background and blurred foreground

Focus on the background, extra large canvas prints use the foreground for frame composition, and make the background of the main body more prominent

Thus, when we choose the right focus, we can make the shallow depth of field effect on the foreground and background, making the foreground or/and background become blurred. Of course, the larger the aperture or the longer the focal length, the more obvious the shallow depth of field effect will be.

When using a wide Angle lens, the shallow depth of field is not obvious. With a wide-angle lens, the depth of field cannot be significantly reduced, even with a maximum aperture.

The focal length of 200mm, focus is on the flower, add the big aperture of f/2.8, shallow depth of field achieves easily

Theory to theory may not know the actual operation of the situation; now let us go to see some practical examples of it!

1. Focus on perspective

With a slightly larger aperture f/4 and f/2.8, the focus is on the distant hillside, so that we can blur the foreground of the branches and grass to make the focal point of the scene more prominent. Note that sometimes we don't need to make the foreground too blurry, or the reader may not know what the photographer is trying to capture.

2. Focus on close shots

Find something interesting in the environment, acrylic prints online then use a large aperture (f/2.8), focus on the main body (small flowers), and use a shallow depth of field to blur the background and highlight the main body.