免费在看国产精品,日本a级黄色片免费,999久久久国产999久久久,国产末成年女AV片

Welcome to the website of Shenzhen Precision Products Co., LTD.

Non-standard precision hardware parts manufacturers

Main: CNC lens processing, precision parts processing

  • 24-hour service hotline:
  • 400-888-8888 12345678911
Current positionHome> Product display >Top-level planning return
Differential lens a

Differential lens a

A professional camera is also called a single lens reflex camera, and a full camera is called a single lens reflex camera. The unique design of the reflectors and prisms of these cameras allows the photographer to view the image through the lens directly from the viewfinder. When light passes through the lens of the camera to the reflector, it refracts to the focus screen above and forms an image.

introduce / introduce
A professional camera is also called a single lens reflex camera, and a full camera is called a single lens reflex camera. The unique design of the reflectors and prisms of these cameras allows the photographer to view the image through the lens directly from the viewfinder. When light passes through the lens of the camera to the reflector, it refracts to the focus screen above and forms an image. Through the eyepiece and pentaprism, the photographer can see the scene outside the picture window. When the shutter button is pressed, the mirror springs up and the shutter curtain in front opens simultaneously. The light through the lens (image) is projected onto the sensitive component (film in traditional cameras, CCD or CMOS in digital cameras) to sensitized it

<noscript id="2aaaa"><dd id="2aaaa"></dd></noscript>
  • <nav id="2aaaa"><sup id="2aaaa"></sup></nav>
    <tfoot id="2aaaa"><noscript id="2aaaa"></noscript></tfoot>
  • <sup id="2aaaa"></sup>
    <tfoot id="2aaaa"><noscript id="2aaaa"></noscript></tfoot>
      <nav id="2aaaa"></nav>
      <tfoot id="2aaaa"><noscript id="2aaaa"></noscript></tfoot>
    • 
      
    • <nav id="2aaaa"></nav>
    • 
      
    • <tfoot id="2aaaa"><dd id="2aaaa"></dd></tfoot>