| 摘要 |
<p>The focus adjustment support device is mounted on a lens apparatus included in an image pickup system for supporting the focus adjustment of the lens apparatus. The image pickup system comprises: an image pickup apparatus having a lens apparatus including focus adjusting section requiring a manual adjustment; and, a case member disposed at a given position for covering at least the image pickup range of the lens apparatus and focus adjusting section, while a portion of the case member corresponding to the image pickup range of the lens apparatus is made of a first light transmissible member having a given optical characteristic. The focus adjustment support device includes a second light transmissible member, and mounting and holding section not only for holding the second light transmissible member but also for mounting the focus adjustment support device onto the lens apparatus in such a manner that the focus of the lens apparatus can be manually adjusted using the focus adjusting section. The second light transmissible member is formed to have an optical characteristic which, in a state where the focus adjustment support device is mounted on the lens apparatus, can provide the same image forming position as in a state where the case member is disposed at a given position.</p> |
