User manual SIGMA 300

[. . . ] In order to get the maximum performance and enjoyment out of your Sigma lens, please read this instruction booklet thoroughly before you start to use the lens. DESCRIPTION OF THE PARTS (fig. 1) Filter Attachment Thread Focus Ring Distance Scale Focus Index Line Focus Mode Switch (SIGMA SA / CANON AF / FOUR THIRDS) Mount Lens Hood DC LENS These are special lenses that are designated for digital cameras because the lens image circle is designated to correspond to the size of the image sensors of most digital SLR cameras. The specialized design gives these lenses the ideal properties for digital cameras. An image sensor element larger than those corresponding to APS-C cannot be used in digital cameras or 35mm SLR cameras. [. . . ] If you wish to focus manually, set the focus mode switch on the lens to the "M" position. (for Nikon AF, select the manual focus mode on your camera body as you would do normally) (For Four-Thirds, select the manual focus mode on your camera body and set the focus mode switch on the lens to the "M" position). You can adjust the focus by turning the focus ring. This lens also permits manual focusing even in the autofocus mode. With the camera set to the One-Shot AF (AF-S) mode, you can adjust focus manually after the lens autofocus (and stops), while the shutter button is pressed halfway. (In the case of Four-Thirds fitting, the setting method varies depending on the camera body. Please follow the instruction manual of your camera body. ) 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. This is due to possible focus shift resulting from extreme changes in temperature which cause various components in the lens to expand and contact. Special allowance is made for this at the infinity setting. FOR SONY AF AND PENTAX AF For autofocus operation, set the camera's focus mode to AF. If you wish to focus manually, set the camera's focus mode to "MF" and adjust the focus by turning the focus ring. To avoid damaging AF mechanism, please do not turn the focus ring manually while in the autofocus mode. 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. This is due to possible focus shift resulting from extreme changes in temperature which cause various components in the lens to expand and contact. Special allowance is made for this at the infinity setting. LENS HOOD A bayonet type detachable hood is provided with the lens. This lens hood helps to prevent flare and ghosted images caused by bright illumination from outside the picture area. (fig. 3) When taking photographs using the built-in flash, it is advisable to remove the lens hood so as to avoid cutting off any of the flash output, which could cause a shadow in the picture. In order to place the lens and hood into the storage case, you must first remove the hood, then replace it on the lens in the reverse position. (fig. 4) FILTER Only one filter should be used at the time. Two or more filters and/or special thicker filters, like a polarizing filter, may cause vignetting. [. . . ] 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. TECHNICAL SPECIFICATIONS Lens construction Angle of View Minimum Aperture Minimum Focusing Distance Magnification Filter Size Dimensions Dia. ×Length Weight 7-7 45° 16 40cm (1. 31 ft) 1:10. 4 62mm 76. 6×59mm (3. 02×2. 32 in) 400g (14. 1 oz) Dimensions and weight include the SIGMA mount. The CE Mark is a Directive conformity mark of the European Community (EC). SIGMA (Deutschland) GmbH Carl-Zeiss-Str. 10/2, D-63322 Rödermark, F. R. GERMANY Verkauf: 01805-90 90 85-0 Service: 01805-90 90 85-85 Fax: 01805-90 90 85-35 [. . . ]