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Sine Image Sector Star Test Chart for Adjusting Camera Lenses Focal Distance (72 Cycles)

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Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
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Brand Name:
Sine Image
Place of Origin:
China
Model Number:
YE0121
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Shenzhen Threenh Technology Co., Ltd.
Verified Business License
Payment & Shipping
Payment Methods:
Port of Shipment:
Shenzhen, China
Delivery Detail:
7 days

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Brand Name Sine Image
Place of Origin China
Model Number YE0121
Model YE0121
Type Reflective/Transparent
Format Custom Designs
Ratio 4:3

PRODUCT DETAILS

The YE0121 test chart is designed for the adjustment of camera lenses and checking back focal distance. It shows a 72 sector Siemens star on a white background.

The YE0121 test chart is designed for

  • adjustment of camera lenses

  • checking back focal distance

 
With the aid of a low transmission filter and by means of low level lighting make sure that the camera is not over modulated with the aperture in the open position.

  1. Optical focus: Adjust focus of zoom lens at greatest focal length.

  2. Back focal distance (lens): Adjust focus at shortest focal length by regulating lens mechanically with adjustment screw and optimize alternatively with a).

  3. Back focal distance (pick-up tubes): If focus varies from channel to channel between greatest and shortest focal length, the individual pick-up tubes must be adjusted mechanically in the optical axis.

     

    1. Select white channel. Set optical focus at greatest focal length. With shortest focal length and divergent focus adjust the pick-up tube in W-channel until optimum focus is achieved. If necessary optimize by alternating with optical focus adjustment.

    2. With unchanged optical focus adjustment and shortest focal length adjust the red and blue pick- up tube until optimum focus is achieved. Image focus (focus adjustment) is maintained at all focal lengths (zoom-in) and constant distance from object by means of back focal distance adjustment.


    Product Tags: Critical Flesh Tones Test Chart , Resolution Test Chart Target , Image Streaking Measurement Test Chart , White Balancing Test Chart , Sector Star Test Chart

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    Shenzhen Threenh Technology Co., Ltd.
    Verified Business License
    Business Type
    Manufacturer
    Year Established
    1998
    Factory Size
    1,000-3,000 square meters
    Annual Export Value
    Above US$100 Million
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