Zeiss siemens star chart printable6/1/2023 ![]() ![]() Image focus (focus adjustment) is maintained at all focal lengths (zoom-in) and constant distance from object by means of back focal distance adjustment. Select the department you want to search in. Read honest and unbiased product reviews from our users. If necessary optimize by alternating with optical focus adjustment.Ģ、With unchanged optical focus adjustment and shortest focal length adjust the red and blue pick-up tube until optimum focus is achieved. Find helpful customer reviews and review ratings for Zeiss Siemens Star Test Chart at. With shortest focal length and divergent focus adjust the pick-up tube in W-channel until optimum focus is achieved. It is especially useful when adjusting a ZEISS CP.2 cine lens for use on a DSLR camera after the lens mount has been converted from PL to another type (such as EF), or vice versa. It is especially useful when adjusting a Zeiss CP.2 cine lens for use on a DSLR camera after the lens mount has been converted from PL to another type (such as EF), or vice versa. The ZEISS Siemens Star Test Chart is a professional lens chart that has been used for decades to set the back focus on lenses used on individual cameras. Set optical focus at greatest focal length. The Zeiss Siemens Star Test Chart is a professional lens chart that has been used for decades to set the back focus on lenses used on individual cameras. 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.Ī) Optical focus: Adjust focus of zoom lens at greatest focal length.ī) Back focal distance (lens): Adjust focus at shortest focal length by regulating lens mechanically with adjustment screw and optimize alternatively with a).Ĭ) 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.ġ、Select white channel. 0 Comments This is the most important one: do not send us your shots and ask if we think your lens is okay.Move your. It shows a 36 sector Siemens star on a white background. The YE0120 test chart is designed for the adjustment of camera lenses and checking back focal distance. ![]()
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