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Sine Image Sector Star Test Chart for Adjusting Camera Lenses Focal Distance (36 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:
YE0120
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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 YE0120
Model YE0120
Type Reflective/Transparent
Format Custom Designs
Ratio 4:3

PRODUCT DETAILS

The YE0120 test chart is designed for the adjustment of camera lenses and checking back focal distance. It shows a 36 sector Siemens star on a white background.

The YE0120 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.

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

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

c) 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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