My lens will work from 18mm to approx 25mm and then I get a Err99 on the camera throughout the zoom range to 200mm. I suspect a fault has occurred in what I presume is an electrical tape/connector that extends through the lens body as it zooms out. I'm wondering if this is a known problem and if a repair will be so expensive that I may be better off replacing the lens? Its an 18-200mm 1:3.5-6.3 Macro. Advice appreciated!

Cameras - Tamron - AF 28-200mm f/3.8-5.6 LD Aspherical Lens