Not sure if this is the right sub-form to post this - sorry in advance if I got it wrong! I am experiencing issues with the meter on my Minolta X-570. It seems to be metering at an aperture between f/11 and f/16 and is locked onto that setting. Adjusting the aperture does not change the suggested shutter speed shown in the viewfinder. However, once the depth of field preview button is pressed down the meter appears to take into account the current aperture setting and the suggested shutter speed changes. I am using a 2nd generation MD Rokkor 50mm f/1.4 lens (without the aperture lock). This happened out of the blue - I'm not sure if there's a setting I missed or if it is an issue with the capacitor. The camera was recently purchased but I previously shot two rolls and didn't remember encountering such an issue. Grateful if someone could shed some light on the problem. Many thanks!