China 3nh Spectrophotometer manufacturer
Shenzhen ThreeNH Technology Co., Ltd.
Shenzhen ThreeNH Technology Co., Ltd Since 1998, 3nh has been a professional factory with 20 years experience on color and glossy measurement industry.
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Back Focus Optical Resolution Test Chart SineImage YE0220 For Camera Lenses

Back Focus Optical Resolution Test Chart SineImage YE0220 For Camera Lenses

Brand Name SineImage
Model Number YE0220
Certification CE&RoHS&TUV&FCC&ISO9001
Place of Origin Shenzhen, China
Minimum Order Quantity 1pc
Payment Terms T/T,Paypal
Supply Ability 1000pcs/month
Delivery Time within 3-5 working days after payment confirmed
Packaging Details Standard Export Package
Brand SineImage
Usage for resolution and sharpness measurements
Light Source Can be equiped with light box
Standard ISO12233(2014)
Model YE0220
diameter center mark 5 mm
Detailed Product Description

SineImage YE0220 Back Focus Test Chart for Camera Lenses

 

 

Model

YE0220

Type

Reflectance/Transparent

Format

Custom Designs

Ratio

4:3

MaterialFilm or HD photographic paper 
 
The Sineimage YE0220 back focus test chart is designed for adjustment of camera lenses and checking back focal distance. It consists of a large Siemens star in the center an four smaller ones positioned in the corners of the test chart.
 
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 at shortest 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 f ocus 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 (zoomin) and constant distance from object by means of back focal distance adjustment.
 

 

 

Remark: We support Any customized test charts only if you have high resolution image and size.

  1.  

Standard Transparent/Reflectance Test Chart Size

  1. SizePicture size(4:3)Picture size(16:9)Chart Size(16:9)
    A280280*210mm280*157.5mm365*305mm
    D240240*180mm240*135mm320*290mm
    D280280*210mm80*157.5mm360*280mm
  2. ISO 12233 Resolution Test Chart Size
  3.  
  4. ModelSpecificationSizeMaterial
    NQ-10-50A0.5X10x17.8 cmphotographic paper
    NQ-10-100A1X20x35.6 cmphotographic paper
    NQ-10-200A2X40x71.1 cmphotographic paper
    NQ-10-400A4X80x142.2 cmphotographic paper
    NQ-10-800A8X160x284.4 cmphotographic paper

 

Remark: We support Any customized test charts only if you have high resolution image and size.

 

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Product Tags: camera resolution chart   camera lens test chart  
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