The 35-50-100 turret finder which a friend's son got for me off eBay seemed just what I wanted for my IIIc until I had it in my hands and tried to put it on the camera. It was made in Liechtenstein, is marked "Argus", and has the strangest foot I have ever seen. A curved piece of thin spring steel goes into the shoe while the only solid metal part is meant to seat *on top* of the rails of the shoe. It was hopelessly loose, so I removed the spring steel piece and carefully increased the curvature on both sides before putting it back. I shall not make it more curvaceous although the finder is still a bit loose. This is because even if it were to be a tight fit, the finder would rotate on top of the body: the spring steel piece is not as wide as the inside of the shoe. One axis OK, the other not. I have so far managed by strategically pushing folded strips of cigarette packets into various spaces and trying my best to remember to check constantly that the finder looks to the front and not to either side; but this, I feel, is not the best course. Every change of lens and every change of parallax correction is a risk. More troublesome is the fact that I must keep the finder on the body, even in the bag, since taking it off and putting it back on is injurious to the health of carefully cut pieces of cigarette packets. An obvious solution is strips of metal or, even better, a rectangular C-shaped piece of the correct thickness. What I want to know is, would anyone who has messed about with this particular combination be willing to hold my paw.