SMC PENTAX 67 LS 6x7 165mm f4 Lens

Film Supply Club

This lens is the Leaf Shutter (LS) 165mm lens for Pentax 67. The LS mode allows using high-speed flash sync with a shutter speed ranging between 1/30 ~ 1/500 sec. When shooting in this mode, “U/S” lever on the lens should be set to the “U” position for “Usual” mode and the camera’s shutter speed dial to 1/8 sec or less while the leaf shutter dial – to the desired speed. Next, the leaf shutter needs to be cocked and an X-sync cable connected to the flash terminal of the lens for high-speed sync.