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As the authorized distributor of SONY industrial camera movement module, Xuanzhan Technology has provided its products and business to more industries, but there are still some customers who do not know much about optical zoom and digital zoom when they consult, thinking that optical zoom and digital zoom are actually the same meaning, but in fact they are not.
1. Optical zoom
Optical Zoom, in essence, is to change the position of the lens, object and focus, so as to scale the field of view of the real image (focal length increases, equivalent focal length increases);
In this process is a pure optical change, the imaging range is always fully covered by the photoreceptor, the final imaging clarity will not have an impact.
2. Digital zoom
English :Digital Zoom, the essence is to enlarge the pixels of the imaging picture through the digital algorithm, so as to form a visual increase in the effect (the focal length remains unchanged, the equivalent focal length becomes larger);
In this process, which is an internal calculation of the program system, the imaging range will not always fully cover the photoreceptor and may lose the clarity of the final image.
SONY FCB-EV7520 uses SONY’s new Exmor R CMOS sensor and unique ISP, equipped with 30x optical zoom lens and 12x digital zoom, effective output of high-definition picture, with many world-renowned industrial camera performance, It includes fast auto focus, image stabilization, fog penetration, wide dynamic, high bright spot suppression, automatic day and night conversion, picture effects and spherical privacy area masking functions.
Optical zoom and digital zoom
3. Focal length and equivalent focal length
Focal length is more meaningful than equivalent focal length. Focal length is something in the optical sense, and the focal length of digital photos is an unchangeable parameter; The equivalent focal length can only measure the size of the object to be photographed, and it is a variable parameter.
Therefore, both the practical significance and the final imaging output results can be considered as follows:
Focal length > equivalent focal length
Optical Zoom > Digital Zoom
FCB-EV7520 has 30 times optical zoom and 12 times digital zoom, with high-definition shooting mode, and has many very excellent performance parameters, can effectively output high-definition images and videos, SONY FCB-EV7520 is widely used in security, UAV, medical, transportation, robot, all-in-one machine, PTZ and other industries, fully meet the various needs of users.
FCB-EV7520 + HDMI coded control board