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Forum: Pentax DSLR Discussion
08-19-2010, 09:39 PM
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Hi everyone, I'm a new owner if a K-x and it works great with my manual lenses, save for one Asanuma 2x teleconverter. When I use this (I'm sure it's bothering the auto contacts in some way) and try to take a picture the viewfinder blacks out for a five seconds or so, and the shutter slaps twice with no file saved in the process. At another point, when the teleconverter was in a sligthly different position, hitting any button on the camera would cause the shutter to activate, including the on/off switch. Even stranger, the lens attached to the teleconverter can access its full stopping range, but when the teleconverter and lens are attached onto the camera body, the aperture blades will move when I turn the ring, regardless of hitting the DOF preview button or not (as if it wasn't mounted to a camera) and the blades will choke up about halfway through when narrowing the aperture.
It looks like I'll just ignore that piece of equipment for now, but how it could cause such large-scale problems is pretty puzzling to me. Anyone else run into this (and is there anything that can be done about it)?
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