cpubrp
Member
Can anyone recommend a reliable lens repair shop for a pre-digital lens (purchased in 1975). I have a f/4 200mm Takumar. The diaphragm used to be a little sluggish, but now it remains wide open (f/4) even when turning the aperature ring whether the lens is set to auto or manual. I'm pretty sure it's a lubricating issue, but I don't want to attempt any DIY.