Photorumors published a list of Tamron lenses for various mounts (Nikon, Canon, Sony, Pentax) that are no longer reparable due part shortages and part discontinuations (see all current Tamron lenses):
- SP AF11-18mm F/4.5-5.6 Di II LD Aspherical [IF]
- SP AF17-50mm F/2.8 XR Di II LD Aspherical [IF]
- AF18-200mm F/3.5-6.3 XR Di II LD Aspherical [IF] MACRO
- AF18-250mm F/3.5-6.3 Di II LD Aspherical [IF] MACRO
- AF18-270mm F/3.5-6.3 Di II VC LD Aspherical [IF] MACRO
- AF 55-200mm F/4-5.6 Di II LD MACRO
- SP AF 17-35mm F/2.8-4 Di LD Aspherical [IF]
- AF 28-200mm F/3.8-5.6 XR Di Aspherical [IF] Macro
- AF28-300mm F/3.5-6.3 XR Di LD Aspherical [IF] MACRO
- SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] MACRO
- AF28-300mm F/3.5-6.3 XR Di VC LD Aspherical [IF] MACRO
- AF70-300mm F/4-5.6 XR Di LD MACRO
- SP AF90mm F/2.8 Di MACRO 1:1
- SP AF180mm F/3.5 Di LD [IF] MACRO 1:1
- SP AF200-500mmF/5-6.3 Di LD [IF]
via Photorumors