I've run into a problem trying to use my (Vivitar) auto extension tubes with my K-5.
Scenarion: Camera set to "M", lens (A 50/f1.4) set to f/22. With the lens directly mounted to the camera, everything works as expected: DOF preview stops the lens down to f/22, and the exposure check showshow far I am off from correct exposure. Taking theshoot results in an image correctly exposed at f/22. If I put one of the extension tubes in place, though, the lens stays wide open at all times, and the image is captured at f/1.4 [no other changes to the settings on either lthe lens or the body] This is not what I expect (or want). Any clue as to what is wrong? Fortunately I have a work-around; using the Fotodiox K-mount-to-m43 adapter (and the same lens & extension tubes) on the Olympus E-PL1. Here's what I was trying to photograph: http://www.jfwaf.com/temp/pfsmini1.jpg That's a small metal figure a friend of ours painted for my wife to use when we participate in tabletop role-playing games (Pathfinder). For a size reference, the large knurled circular plinth at the very bottom of the shot is a metal K-mount body cap. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
