What does a wide-angle head do? Can it be omitted by enlarging the shooting distance?

At the same distance, the wide-angle lens has a larger viewing angle and can accommodate more scenes in the picture.

In some cases, you can get a larger angle of view by widening the distance, but personally feel that the scene will become smaller after widening the distance, which is different from a wide-angle lens. Although the scene shot by wide-angle lens at the same distance is smaller than that shot by medium-focus lens at the same angle, it is still larger than that shot by medium-focus lens at the same angle, which is beneficial to the expression of the theme.

In addition, the most important thing is that when the shooting space is limited in some occasions and you can't get the desired angle of view when you retreat enough, you can only shoot at close range with a wide-angle lens.

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In addition, perspective deformation and distortion caused by wide angle are two concepts. Distortion is a defect, and perspective deformation is a visual effect.

Photography is also diverse, including perspective deformation.

I understand that when you say no photography, you may mean taking pictures horizontally and vertically. To achieve that effect, it is not enough to focus in the middle, but to use a shift lens.

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My personal understanding of serious photography is a photographic attitude rather than a form of expression, which is different from taking commemorative photos for tourists. As long as it is taken seriously, it belongs to serious photography. The simplest example, traveling and pressing the shutter as a souvenir, is not serious photography; And bring all the equipment needed for this shooting, go to a certain place to shoot, wait for the light to stay, and step back and forth to get a better shooting angle. , should belong to serious photography, hehe.