Major professional lens companies such as Sigma and Tamron have announced that they plan to stop producing a range of lenses for SLR cameras. Sigma has already discontinued 18 lenses and Tamron has discontinued 22 SLR lenses.
Below is a list of discontinued Sigma DSLR lenses:
1. Sigma 15mm F/2.8 EX DG
2. Sigma 17-50mm F/2.8 EX DC OS HSM
3. Sigma 17-70mm F/2.8-4 DC Macro OS HSM
4. Sigma 18-200mm F/3.5-6.3 DC OS
5. Sigma 8mm F/3.5 EX DG Fisheye
6. Sigma 8-16mm F/4.5-5.6 DC HSM
7. Sigma 4.5mm F/2.8 EX DC HSM
8. Sigma 10mm F/2.8 EX DC
9. Sigma 12-24mm F/4.5-5.6 II DG HSM
10. Sigma 70-200mm F/2.8 EX DG OS HSM
11. Sigma 18-250mm F/3.5-6.3 DC OS HSM
12. Sigma 18-250mm F/3.5-6.3 DC Macro OS HSM
13. Sigma 50-500mm F/4.5-6.3 DG OS HSM
14. Sigma 70-300mm F/4-5.6 APO DG Macro
15. Sigma 70-300mm F/4-5.6 DG Macro
16. Sigma 150mm F/2.8 EX DG OS HSM Macro APO
17. Sigma 180mm F/2.8 EX DG OS HSM Macro APO
18. Sigma 300mm F/2.8 APO EX DG HSM
Below is a list of discontinued Tamron DSLR lenses:
1. Tamron 10-24mm F/3.5-4.5 Di II VC HLD
2. Tamron 16-300mm F/3.5-6.3 Di II VC PZD Macro
3. Tamron 17-35mm F/2.8-4 Di OSD
4. Tamron 35-150mm F2.8-4 Di VC OSD
5. Tamron 17-50mm F/2.8 SP AF XR Di II VC LD Asph IF
6. Tamron 28-75mm F/2.8 SP AF XR Di LD Asph IF Macro
7. Tamron 28-300mm F/3.5-6.3 Di VC PZD
8. Tamron 70-300mm F/4-5.6 SP VC USD
9. Tamron 70-300mm F/4-5.6 AF Di LD Macro
10. Tamron 85mm F/1.8 SP Di VC USD
11. Tamron 90mm F/2.8SP AF Di Macro
12. Tamron 90mm F/2.8 Di Macro 1:1 VC USD
13. Tamron 150-600mm F/5-6.3 SP VC USD
14. Tamron 10-24mm F/3.5-4.5 SP AF Di II LD Asph IF
15. Tamron 15-30mm F/2.8 SP Di VC USD
16. Tamron 18-270mm F/3.5-6.3 AF Di II VC LD PZD IF Macro
17. Tamron 24-70mm F/2.8 SP Di VC USD
18. Tamron 45mm F/1.8 SP Di VC USD
19. Tamron 60mm F/2 SP AF Di II LD IF Macro
20. Tamron 70-200mm F/2.8 SP AF Di LD IF Macro
21. Tamron 70-200mm F/2.8 Di VC USD
22. Tamron 180mm F/3.5 SP AF Di LD IF Macro