| 摘要 |
PROBLEM TO BE SOLVED: To obtain extremely high accuracy that the result of simulation in a designing stage excellently coincides with the tendency of the actual photometric measured value of a camera by calculating a photometric value obtained by photometry performed by a photometry element by utilizing input data and stored data. SOLUTION: This device is provided with an input means 1 for inputting the data concerning the photometry element arranged at a specified position in order to perform the photometry of a luminous flux from a diffusion plate, and an external storage means 4 storing the data required to perform the photometry of the luminous flux from the diffusion plate by the photometry element. Then, it is provided with a central processing means 2 calculating the photometric value obtained by the photometry performed by the photometry element by utilizing the input data from the input means 1 and the data stored in the storage means 4. By strictly considering the light distribution characteristic of the diffusion surface of a focusing screen and the other elements, the photometric system evaluating device for a single lens reflex camera where the result of the simulation in the designing stage excellently coincides with the tendency of the actual photometric measured value of the camera and whose accuracy is extremely high is obtained. |
