| http://www.w3.org/ns/prov#value | - Therefore, the ENG lens can be used as an automatic focusing (AF) lens by providing an AF function in the drive unit or the like.Even in the case of an AF lens, there is a need to enable manual focusing (MF) particularly in broadcasting as well as AF. For example, Japanese Patent Application Laid Open No. 2003-337278 discloses a device for changing the focusing modebetween AF and MF by operating a
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