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How do you use it ...in laymans terms....settings etc. thanks

How do you use it ...in laymans terms.....100-400mm l is usm lens

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  • cemery Sep 12, 2009

    THANKYOU ...I GUESS I WANTED TO KNOW I HAVE PROBLEM FOCUSING IT......WONDERING IF IT IS ME OR THE LENS......LIKELY ME ...I AM SO NEW TO PHOTOGRAPHY AND STIL LEARNING.........USED TO THE SMALLER LENS.......

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Your question ( in laymans terms) is unclear! But I will make a guess as to what it is you ask.

The 100-400mm is the focal length of the lens, To use it it has to be attached to the camera It it is capable of focusing clearly on an object at its maximum output as well as its minimum. At its maximum focus it can perhaps ( depending on optical quality) bring an object 4-5 Kilometers into clear view. Most lenses have a zoom factor and a focus ring. Experimentation with the lens will be a better way of defining what improvements it has over a standard 50mm lens

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Posted on Sep 12, 2009

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Posted on Jan 02, 2017

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