Fix Broken Aperture Ring

Be sure you see an actual aperture stop right behind the lens that blocks light from the sky.

Fix broken aperture ring.

It still looks great from above but is much stronger. Manual focusing is a great exercise and the quality of the glass is often surprising. As usual first step is to unscrew four mount bolts and remove thick and massive mount ring. Or if you notice a weak area have it beefed up before it cracks or becomes damaged.

If there is a ring like this farther down the tube ignore it it s no problem. In the case of the above ring a gold section was added underneath. The lens i used here in this video is th. I really enjoy using m42 aka screw mount lenses.

Click stop mechanism is self secured so it s safe to remove aperture ring without loosing tiny metal. I recently disassembled one sample for repair. This little instructable is about how to make aperture control f number setting on each of these types of lenses work on your dslr. Sometimes the ring must be altered a bit to give it strength.

The catch is that all three types can have no response to turning the obviously marked aperture ring without being broken. While the ideal option is to return to the same store or jeweler from which the ring was bought large chains like kay jewelers will perform repairs no matter where the ring was purchased. Most are about 2 5 or so. In this video we will be looking at a way to fix aperture ring getting stuck in manual lens or in any vintage lens.

Also the main lens should be at least two inches across. There are three basic types of m42 aperture controls listed here in chronological order. Be careful reflections can sometimes look a lot like these rings.