Is it necessary to use a hood under any circumstances when taking pictures?

No, the hood is widely used in backlight photography, which can generally avoid glare.

If the light source is close, glare may still appear. At this time, you can block the hood by hand at the side where the light source is located, and whether to eliminate glare can directly observe the effect in the viewfinder.

In addition to the optical quality of the lens itself, the role of the hood is also very obvious. The picture without hood is not ideal in color, sharpness and contrast, while the picture with hood has good performance in several aspects. The hood is small and the effect is different.

Using a hood is not only a means to improve the image quality, but also a good professional habit, and it is also a manifestation of a rigorous photographer's professional quality.

If the ambient stray light enters the lens, it will be reflected on the photosensitive element through the lens, forming glare. If glare occurs, a light spot may be formed. Backlight shooting is the most prone to spots. Under strong light, the light will be projected onto the photosensitive element to form a light spot.

Images may also become blurred, reducing contrast and color saturation. After adding a hood, glare caused by stray light entering the lens can be prevented. But sometimes, in order to create special effects, some people will choose not to use a hood to create light spots.

In fact, the hood can effectively block the light outside the scene and affect the contrast and saturation of the subject. Some universal hoods advertised as suitable for multi-lens in the market are not as effective as expected, because the hoods designed by manufacturers for each lens are specially designed, which can effectively block the light beyond the specific focal length of each lens.

Using the wrong hood may lead to blurred images, which is not worth the loss.

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