PRPATC3A046

PAT-C3-A046

Pret a Tourner

Check the back focus of your camera's spherical lens with this Mega Star Box Spherical Lens Test with Magnetic Calibration Chart from Pret a Tourner. The portable magnetic calibration chart features a star-shaped Siemens target and a markable annotation area. It attaches easily to any metallic surface and comes with an aluminum bracket that protects it while facilitating mounting on optional stands, an erasable marker, a universal spigot, and a carrying case.