Well as a newbie I thought it was time to join up to try and get some advice as there seems to be a lot of good stuff on this board. I've had my S3 for a few weeks and think it's a great piece of kit. The only glitch seems to be getting it to focus using an additional 2x teleconverter. My wide angle converter in contrast works perfectly. Without the teleconverter focus at 12x is pin sharp but when I add the converter not so great. The image at 24x on the LCD display is pin sharp but as soon as I depress the shutter half way to focus things get seriously blurry. I've tried focus lock and manual focus, setting the converter setting to both "on" and "off" and also changed the image stabiliser settings - all with no apparent effect. Any inspired thoughts would be greatly appreciated !

