Originally posted by troglodyte newarts,
The problem is, I would like a lever to push. That opens and shuts. either a push or release to open to f3.5 and the other to say f16. The lens has only one aperature ring. no auto. no auto lever switch. how do they add such on auto-taks?
They built it into the lens design; it is an integral part of the lens. And you don't want an Auto-Takumar as the lever is only used when shooting with film bodies. On digital you have to open and close the aperture yourself. The Auto-Takumar design was just part of the evolution in the design of lenses to make them more convenient to use.
What would serve you better would be either the Super Takumar, Super-Multi-Coated Takumar, or SMC Takumar type design. Those have an auto-manual switch you can move to go from wide open to your shooting aperture. Personally, I find it less clumsy to just spin the aperture ring and count the clicks. Other brands are alright, of course; just make sure they have an auto-manual switch before you buy them. The preset lens design would also probably suit you quite well. It has two aperture rings. One of them is used to set the aperture you want to shoot at. Then you easily spin the other one from wide open and it stops on your shooting aperture....no clicks. Easy as pie.
And it sounds like your lens is broken or at least in bad shape, by the way. You might consider replacing it with one of the flavors of Takumar in 135/3.5. They're as common as stupidity so the prices are very reasonable. Shouldn't run you over $30~40.