How to get higher definition quality images is a problem we have always been concerned about. Good image depends on the quality of the lens, so what are the differences between the fixed focus lens and the zoom lens? Let's compare them together.
The difference between a fixed focus lens and a zoom lens
Exterior:
The fixed focus lens has only the focus ring; the zoom lens has two rings, a focus ring (control sharpness) and a zoom ring (control angle of view, ie push and pull).
use:
The zoom lens is capable of zooming in or out of the image size by changing the focal length of the lens; the fixed focus lens can only be realized by moving the camera (lens) back and forth.
advantage:
Fixed-focus lens: small size, generally large aperture, constant aperture, fast shooting speed, generally high-speed lens, good imaging effect.
Zoom lens: Convenient, generally floating aperture (constant aperture is expensive, large aperture is more expensive), it is convenient to change the focal length by sliding the lens to adjust the landscape.
Disadvantages:
Fixed-focus lens can't zoom, only one focal length, or only one field of view, if the zoom is basically walking away;
The zoom head is not as well imaged as the fixed focus head, and the zoom sacrifices weight and volume, as well as the size of the aperture, for ease of use. There are many types of zoom lenses, such as a wide focal length of 28-125, so that when you go out for a trip, you can take care of a lot with just one lens. The zoom lens is not as good as the fixed focus lens.
In this paper, we compare the differences between fixed-focus lens and zoom lens in terms of appearance, use, their respective advantages and disadvantages. I believe that through the understanding of this article, you can be more familiar with the difference between the two.
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