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Manual focusing shooting method and device of exchangeable lens paraxial camera

A technology of exchanging lenses and manual focusing, applied in color TV parts, TV system parts, TV and other directions, can solve the problems of body wear, lens and body mismatch, etc., to achieve the effect of convenient operation

Active Publication Date: 2020-06-09
SHANGHAI SEAGULL DIGITAL CAMERA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

And the used lens and body have different degrees of wear and tear, which will cause a mismatch between the lens and the body

Method used

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  • Manual focusing shooting method and device of exchangeable lens paraxial camera
  • Manual focusing shooting method and device of exchangeable lens paraxial camera
  • Manual focusing shooting method and device of exchangeable lens paraxial camera

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in conjunction with the accompanying drawings in the embodiments of the present specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] It should be noted that the terms "include" and "have" in the embodiments of this specification and the drawings, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other step...

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Abstract

The embodiment of the invention discloses a manual focusing shooting method and device of an exchangeable lens paraxial camera. The method comprises the steps of acquiring preset lens parameters; displaying a preview image acquired by a pixel sensor to a user; obtaining the actual focusing distance of the lens according to the position information of a linkage ring and the lens parameters; obtaining the actual distance between a focusing target and the lens according to the phase focusing point and the lens focal length; according to the deviation between the actual focusing distance and the actual distance, deviating the image of the focusing target in a preview image and displaying on a focusing screen; judging whether a shooting instruction is received or not ; if the shooting instruction is received, shooting the current preview image ; and if the shooting instruction is not received, executing the step of obtaining the actual focusing distance of the lens according to the positioninformation of the linkage ring and the lens parameters again.

Description

technical field [0001] This specification relates to the field of cameras, in particular, to a manual focus shooting method and device for rangefinder cameras with interchangeable lenses. Background technique [0002] Rangefinder cameras, also known as rangefinder viewfinder cameras, are named "rangefinder" cameras because the optical axis of the viewfinder is located next to the optical axis of the photographic lens and parallel to each other. The manual focus system of the existing interchangeable lens rangefinder camera is an optomechanical system. The composition of the optical mechanical system is complex, and many optical components and mechanical parts are required, and the processing precision and assembly precision of the parts are required to be high. It causes difficulties in processing and assembly, high cost, and can only achieve focusing in the center of the picture. Even the best Leica M-series cameras. Also because of the wear and tear of the high-precisio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/67H04N23/632
Inventor 董福强
Owner SHANGHAI SEAGULL DIGITAL CAMERA
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