I see the little pin you are taking about. I don't have a tool that small to turn the pin. I try pushing on it and it doesn't turn. Will see if I can find an end cap on ebay today.
clicktime wrote:
I figured it out. In the lens there is 1 pin you have to push at the bottom but up by the red dot on the top there is a little metal thing that looks like a pin but instead of pushing it you turn it clockwise about a quarter of a turn, the whole inside ring turns. Its hard to explane. Watch what turns when you put the cap on and turn it then you will understand. I pushed the pin at the bottom while I turned the inside ring clockwise 1/4 turn and the blades opened all the way.