I purchased a used A12 50mm back in September for my first Ricoh ever and I was very happy with it. It was working just fine until a few weeks ago when it started to occasionally freeze I updated to the latest firmware and that made it worse, completely unusable. I contacted Ricoh and they said send it to CRIS for repair. CRIS was going to repair the lens under warranty(so I guess it was not a users error/fault) but since I'm not the original owner the warranty is not transferable and I don't even know if it's still under warranty anyway. The cost to repair the "power" module is going to be about $450. So I'm out a great lens since a non lens part failed. I don't think I'm going to stick with this lensor idea. Thoughts and comments appreciated update- Ricoh has officially responded that they are not going to fix it. I was expecting to pay something when I sent it in but not 2/3 the cost of a new lens and it would be older sensor technology too. Am I whining too much? This is not cheap stuff.