Voigtlander Turret Finder This finder allows you to switch between 35mm and 100mm by rotating it. It also has a field-of-view correction function that switches between 1m, 3m, and infinity. I purchased this used, and as you can see, the exterior is quite worn. The view is relatively clear, but there is a considerable amount of dust and dirt on the lens, so it's for those who aren't too particular. Please purchase only if you understand that this is a used and old item.