The problem is only with the A 50mm F1.2. The problem is with the contacts for this lens. The A contacts are simple, on the lens side they are either metal (1) or plastic (0). The 5 contacts make up a code that tells the camera the minimum/maximum aperture. The problem is that the code for the A 50mm F1.2 is all 1's, or all metal. So the camera gets fooled, as it thinks all metal means that an older K/M lens has been mounted. Don't worry, the K 50mm F1.2 doesn't have this problem.
Todd At 09:42 AM 10/30/01 -0300, you wrote: >Hi, gang. >I "bought" (it was almost a gift, and I still have to pay it) a ZX-M from >Bruce Dayton. (Thanks again Bruce!) >Reading the user's manual, there's something I don't understand, and it >appears twice: > >It makes a special warning regarding the use of SMC 50 1.2. It says >something like "when used in another position than A (hence they're talking >about the A version of the lens?), the camera will switch to centerweighted >(no problem, even better), and since an overexposure of 1 stop will occur, >you must compensate". > >I can't understand this thing about overexposure. Why just with the 50 1.2? >The body has a limit with max aperture in order to give proper metering? >I have the K version, so I'm scary about this possible 1 stop overexposure. >I'm way confused. > >AG >- - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
