It looks like the trend of killing off DSLR lenses continues. After Nikon and Canon, Tamron and Sigma seem to be killing off a bunch of lenses for DSLR cameras. With 18 lenses from Sigma and 22 from Tamron, there is a total of 40 lenses that are soon no longer going to be produced.

Discontinued Sigma lenses

Discontinued Sigma lenses

Discontinued Sigma lenses

Sigma 15mm f/2.8 EX DGSigma 17-50mm f/2.8 EX DC OS HSMSigma 17-70mm f/2.8-4 DC Macro OS HSMSigma 18-200mm f/3.5-6.3 DC OSSigma 8mm f/3.5 EX DG FisheyeSigma 8-16mm f/4.5-5.6 DC HSMSigma 4.5mm f/2.8 EX DC HSMSigma 10mm f/2.8 EX DCSigma 12-24mm f/4.5-5.6 II DG HSMSigma 70-200mm f/2.8 EX DG OS HSMSigma 18-250mm f/3.5-6.3 DC OS HSMSigma 18-250mm f/3.5-6.3 DC Macro OS HSMSigma 50-500mm f/4.5-6.3 DG OS HSMSigma 70-300mm f/4-5.6 APO DG MacroSigma 70-300mm f/4-5.6 DG MacroSigma 150mm f/2.8 EX DG OS HSM Macro APOSigma 180mm f/2.8 EX DG OS HSM Macro APOSigma 300mm f/2.8 APO EX DG HSM

Discontinued Tamron lenses

Discontinued Tamron lenses

Discontinued Tamron lenses

Tamron 10-24mm f/3.5-4.5 Di II VC HLDTamron 16-300mm f/3.5-6.3 Di II VC PZD MacroTamron 17-35mm f/2.8-4 Di OSDTamron 35-150mm F2.8-4 Di VC OSDTamron 17-50mm f/2.8 SP AF XR Di II VC LD Asph IFTamron 28-75mm f/2.8 SP AF XR Di LD Asph IF MacroTamron 28-300mm f/3.5-6.3 Di VC PZDTamron 70-300mm f/4-5.6 SP VC USDTamron 70-300mm f/4-5.6 AF Di LD MacroTamron 85mm f/1.8 SP Di VC USDTamron 90mm f/2.8 SP AF Di MacroTamron 90mm f/2.8 Di Macro 1:1 VC USDTamron 150-600mm f/5-6.3 SP VC USDTamron 10-24mm f/3.5-4.5 SP AF Di II LD Asph IFTamron 15-30mm f/2.8 SP Di VC USDTamron 18-270mm f/3.5-6.3 AF Di II VC LD PZD IF MacroTamron 24-70mm f/2.8 SP Di VC USDTamron 45mm f/1.8 SP Di VC USDTamron 60mm f/2 SP AF Di II LD IF MacroTamron 70-200mm f/2.8 SP AF Di LD IF MacroTamron 70-200mm f/2.8 Di VC USDTamron 180mm f/3.5 SP AF Di LD IF Macro

[via Nikon Rumors]