[. . . ] [. . . ] €¢ Can be used with the optional EC-14 and EC-20 teleconverters in manual focusing (MF) mode. €¢ Cannot be used with the optional EX-25 extension tube. €¢ When using E-300, make sure that the camera firmware is version 1. ) • Specifications are subject to change without any notice or obligation on the part of the manufacturer. [. . . ] [. . . ]