You can have the best camera for beginners, but if you don't truly understand focal length, you'll struggle to pick the right ...

Lens The lens and aperture are key factors in determining depth of field. Lenses are known by their focal lengths - 14mm, 50mm, 200mm. Their role is to bend the rays of light that enter through ...

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Tamron Co., Ltd., specialised manufacturer of optics and one of the leading companies in the security / surveillance equipment industry announces the launch of a Vari-Focal lens 1/3” 5-50mm F/1.6 ...