One thing to achieve is the relationship between focal length and actual imaging. Consistent with imaging theory, the key to the entire lens is inversely proportional to the left and right viewing directions.camera news . At this stage, you should choose the best shot key duration based on your unique tracking environment.

The wide-angle zoom lens carries a wide angle of view, but just because its center length is short, it doesn't look in many directions, and it can't be seen clearly at any distance. That means this wide-angle but not too far camera is perfect for public areas like elevators.

The longer lens duration produces sharper portraits even at great distances, but the correspondingly narrower imaging angle across all the different achievable ranges makes it more suitable for long range shots. Aisles and corridors.

So, there is no best option, only the best option. The choice of camera lens key distance depends on the quality of the room you are examining and how far the lens extends. Lenses of each critical dimension can only achieve the desired effect in a certain array. On the other hand, if you need a long collection and a large collection, your best bet is to increase the number of cameras, usually at a higher price.

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