Mechanical shutter exposure time delay measurement apparatus and method for camera

Abstract

The invention belongs to the technical field of electronic information, and specifically relates to a mechanical shutter exposure time delay measurement apparatus and method for a camera. The mechanical shutter exposure time delay measurement apparatus comprises a light-tight shell arranged at the front end of a shooting lens of a to-be-measured camera; a reticle and a controllable light source are arranged on the light-tight shell; the reticle and the controllable light source are arranged in the right ahead of the lens of the to-be-measured camera; the reticle is positioned between the controllable light source and the lens of the to-be-measured camera; the space between the controllable light source and the lens of the to-be-measured camera is sealed, so that the light from the controllable light source is divided only through the reticle to enter the to-be-measured camera for imaging; the controllable light source is connected with a trigger control apparatus; the trigger control apparatus is connected with a camera shooting control port of the to-be-measured camera; the trigger control apparatus is used for controlling the to-be-measured camera to perform shutter starting or closing and controlling the controllable light source to perform delayed closing or starting during the starting or closing of the shutter; and by virtue of the whole apparatus, accurate measurement on the exposure time delay of the camera can be realized on the basis of not detaching the camera.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of electronic information, and in particular relates to a camera mechanical shutter exposure delay measuring device and method. [0003] 【Background technique】 [0004] With the continuous improvement of technology, digital cameras are getting closer and closer to our lives. Whether it is an amateur friend who loves photography, or a professional practitioner engaged in photography work, as well as the new measurement application using photography technology in recent years, if you want to obtain ideal photos, you will be very concerned about the status and parameters of the digital camera itself. Such as the camera's shutter lag and exposure delay (shutter speed). Camera users can hardly complete the determination of these parameters by themselves, and camera manufacturers rarely provide these parameters. Some camera manufacturers also measure the shutter time lag and exposure delay, but the measu...

AI Technical Summary

Problems solved by technology

Some camera manufacturers also measure the shutter time lag and exposure delay, but the measurement devices are complex and the testing equipment requires high technology, and most of them are carried out on the camera shutter before the camera is assembled, and the accuracy of the measurement results is relatively low. Difference

Therefore, its test method and test device cannot be applied to camera users who are unwilling to disassemble the camera, and its test accuracy cannot meet the needs of professionals, especially for photogrammetry work

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