| 摘要 |
PROBLEM TO BE SOLVED: To provide an Albada finder which is made compact and which is provided with a wide diopter adjusting range. SOLUTION: The focal distance of an eyepiece 15 which is moved so as to adjust the diopter is shortened by arranging a negative lens 14 behind an optical element 13 forming an Albada system frame, then, a prescribed diopter variation is secured with a small moving distance. Thus, the Albada finder 1 through which many users can easily view and also which is made compact is accomplished.
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