User manual SIGMA APO 150-500MM F5-6.3 DG OS HSM

[. . . ] For Nikon, Pentax and Sony mounts, it is only possible to use AF with camera bodies which support motors driven by ultrasonic waves such as HSM. AF will not function if the camera body does not support this type of motor. With the camera set to the One-Shot AF (AF-S) mode, it is possible to manually override the autofocus while the shutter release button is pressed halfway. When operating this lens in manual focus mode, it is recommended that correct focus be confirmed visually in the viewfinder rather than relying on the distance scale. [. . . ] Although the viewfinder image may appear to shake immediately after shooting and at the start of the flash charge cycle of the built-in flash of the camera etc. If the camera power is turned off or lens is detached while the Optical Stabilizer function is in operation, the lens may emit a chattering noise, but this is not a malfunction. For Sony and Pentax mounts, it is only possible to use the OS function, incorporated in this lens, with camera bodies which support motors driven by ultrasonic waves such as HSM. When using the OS function, please turn off the optical stabilizer function of the camera body and set the OS switch of the lens to ON. When using the camera’s optical stabilizer function, please set the OS switch of the lens to OFF and turn the camera’s optical stabilizer function on. The OS unit of the lens will not fix into its position if the camera body is turned off before switching off the lens’ OS mechanism. Optical Stabilizer feature can work with the Nikon AF cameras shown in the following table. When using this lens with other camera models not listed in the following table, please set the OS Switch to OFF position to cancel the Optical Stabilizer function. Digital SLR Cameras and F6 From our homepage, you can check the latest information regarding the camera models, which can be used with Optical Stabilizer function. It is possible to remove the lens’ tripod socket, for more convenient hand-held photography, if desired. To do so, first loosen the tripod collar locking knob, and, align the index mark of the collar, with the REMOVE position (fig. When you wish to re-attach the tripod collar to the lens, please reverse the procedure above. Please, do not set the tripod collar to the REMOVE position, except when you are removing, or attaching, the tripod collar, as the lens may inadvertently detach from the collar and fall. Also, please remember to tighten the locking knob to prevent the lens from rotating unintentionally. When the lens is mounted on the camera, the tripod collar cannot be removed from the lens. SHOULDER STRAP Please attach the shoulder strap to the sling as described in figure 8. FLASH PHOTOGRAPHY The camera’s built-in flash will cause barrel shadow if used with this lens. ABOUT TELE CONVERTERS AF DG AF The lens can be used with Sigma’s 1. 0x EX Apo Tele Converters (optional), becoming a 210-700mm F7-9 telephoto zoom lens or a 300-1000mm F10-13 telephoto zoom lens respectively both can be used in manual focus only . Do not use other manufacturers’ teleconverter’s, only those listed above are compatible. [. . . ] Sudden temperature changes may cause condensation or fog to appear on the surface of the lens. When entering a warm room from the cold outdoors, it is advisable to keep the lens in the case until the temperature of the lens approaches room temperature. This special glass normally has some tiny air bubbles but it does not affect the optical performance. The glass materials used in the lens do not contain environmentally hazardous lead and arsenic. [. . . ]