Sineimage YE0121 Sector Star Test Chart (72 cycles)

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.

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

1. 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.

Standard Transparent/Reflectance Test Chart Size

1. Size	Picture size(4:3)	Picture size(16:9)	Chart Size(16:9)
   A280	280*210mm	280*157.5mm	365*305mm
   D240	240*180mm	240*135mm	320*290mm
   D280	280*210mm	80*157.5mm	360*280mm

2. ISO 12233 Resolution Test Chart Size

4. Model	Specification	Size	Material
   NQ-10-50A	0.5X	10x17.8 cm	photographic paper
   NQ-10-100A	1X	20x35.6 cm	photographic paper
   NQ-10-200A	2X	40x71.1 cm	photographic paper
   NQ-10-400A	4X	80x142.2 cm	photographic paper
   NQ-10-800A	8X	160x284.4 cm	photographic paper

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

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CE Resolution Test Chart Sineimage YE0121 Sector Star Target Transparent / Reflectance Images