You never know what will come in handy when out with the camera. I was out hiking yesterday. I put on my Minolta 55mm using an adapter. I noticed I could not achieve infinity focus. Upon closer inspection I noticed the lens was drooping out of the adapter, two of the screws that hold on the inner locking ring were missing the third was about to fall out. Luckily I had some super glue in my first aid kit, I ran a small bead of glue around the perimeter of the inner ring waited a while for it to dry then was back in business. I would not glue together an expensive lens ( well maybe ) but I had no qualms about gluing my noname ebay adapter. I have never experienced loose screws on my lens or adapters before. I guess I will give them a once over. I am glad I had the super glue with me.