If you want bigger targets, scale them using bilinear interpolation. You determine the lens is properly focused as the rays of the stars get closer and closer to the center. Featured Products RED DIGITAL CINEMA REDVOLT BP for KOMODO 6K S35 229. Star Charts are often used as focusing aids, which is one of the reasons we put them on the resolution charts we use for Imatest and our other testing setups.

If you want to print on smaller paper, crop the targets, but print at 360 or 300 ppi.ĭesigned to test and set the back focus on DSLR cameras, the Zeiss Siemens Star Test Chart is a professional lens chart that is particularly effective when swapping a Zeiss CP.2 cine lens mount from one type (i.e. We use a the Zeiss modified Siemens Star Chart. To download a file, right-click on the link below, then choose “Save as…”įor optimal results, don’t scale the targets send them to your printer driver at 360 ppi in the case of the Epson files, or 300 ppi for the Canon ones. There are three stars for Epson printers, which want 360 ppi input images, and three for Canon printers, which take 300 pi images. All are sized for 16-inch (410 mm) stars. Siemens star A Siemens star A Siemens chart filter in a collimator, used for auto-focus calibration of digital still cameras A Siemens star with 128 spokes. A detailed comparison of Siemens Star and slanted-edge MTF results is presented in Slanted-edge versus Siemens Star A.

Zeiss siemens star chart printable