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Manual focus shooting method and device of rangefinder camera with interchangeable lens

A technology for lens exchange and manual focus, which is applied to color TV parts, TV system parts, TVs, etc., and can solve problems such as lens and body mismatch, body wear, etc.

Active Publication Date: 2021-02-26
SHANGHAI SEAGULL DIGITAL CAMERA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 focus shooting method and device of rangefinder camera with interchangeable lens
  • Manual focus shooting method and device of rangefinder camera with interchangeable lens
  • Manual focus shooting method and device of rangefinder camera with interchangeable lens

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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 this specification discloses a manual focus shooting method and device for a rangefinder camera with an interchangeable lens. The method includes: obtaining preset lens parameters; displaying a preview image obtained by a pixel sensor to the user; obtaining the actual focusing distance of the lens according to the position information of the linkage ring and the lens parameters; obtaining the focusing target according to the phase focusing point and the focal length of the lens The actual distance from the lens; according to the deviation between the actual focus distance and the actual distance, the image of the focus target in the preview screen is offset and displayed on the focusing screen; it is judged whether the shooting command is received, if the shooting command is received , then shoot the current preview image, if no shooting instruction is received, return to the step of obtaining the actual focus distance of the lens according to the position information of the linkage ring and the lens parameters.

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 Patents(China)
IPC IPC(8): H04N5/232
CPCH04N23/67H04N23/632
Inventor 董福强
Owner SHANGHAI SEAGULL DIGITAL CAMERA
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