[. . . ] 4 2X EX DG 2 Thank you very much for purchasing a Sigma APO Tele Converter EX DG. 4x increase in the master lens’ effective focal length, whereas the Sigma APO Tele Converter 2x EX DG doubles the master lens’ effective focal length. [. . . ] Please focus the lens automatically or manually according to the instructions provided for the camera or lens. If using lenses marked “MF” with a SONY, NIKON AF and PENTAX AF cameras, be aware that these lenses cannot focus precisely by auto focusing. Please be sure to use the manual focusing method when using these lenses with the APO Tele Converters. The speed of auto focusing, when using the tele converter, may be slightly slower than without the converter. AF AF MF” EXPOSURE Using the APO Tele Converter EX DG decreases the effective aperture by one F-stop (with the APO Tele Converter 1. However, exposure can be determined in the same manner as when using the master lens without a tele converter. If using a lens marked “ ” in [Table 1], the camera’s display will you the converted exposure information. 4X 1 EX DG 2X 2 When using a tele converter with a lens not marked “ ” in [Table 1] while using a hand-held exposure meter, you should increase the exposure reading by 1-stop for the APO Tele Converter 1. 2 If using lenses equipped aperture ring with NIKON AF mount of this Tele Converter, you need to set minimum aperture depending on the camera in use. If using lenses equipped aperture ring with PENTAX AF mount of this Tele Converter, you need to set A position depending on the camera in use. [. . . ] Jp GRUNDLÆGGENDE VEDLIGEHOLDELSE OG OPBEVARING Undgå at udsætte teleconverteren for stød eller slag og udsæt den ikke for ekstremt høje eller lave temperaturer eller fugt. : J E The glass materials used in the lens do not contain environmentally hazardous lead and arsenic. [. . . ]