Recently we made a recap of all the Sigma and Tamron patented APS-C lenses.

Well, it looks like we have to add another one to the list as spotted by the Japanese website asobinet:

• Sigma 50-135mm f/2.8 DC DN

Looking at the patent details, asobinet concludes that aberration is beautifully corrected in the entire zoom area and it has no internal zoom, unlike the Sigma 70-200mm F2.8 DG DN OS full frame lens.

The new patent is very similar to the already patented Sigma 50-140mm f/2.8 DC DN and that was very high on your wishlist when I launched the survey asking you which patented Sigma/Tamron lens you’d like to get.

• The Future of Fujifilm in Patents: Full Frame Lenses Coming, X100 with 20mmF2 lens, Foldable Fuji Smartphone and More
• The Future Sigma and Tamron APS-C lenses in Patents – Vote the Lens You’d Like to Get

Patented APS-C lenses by Sigma and Tamron

• Sigma 13mm f/2
• Sigma 18-50mm f/2
• Sigma 20mm f/1.4
• Sigma 50-140mm f/2.8
• Sigma 50-135mm f/2.8
• Tamron 13mm f/1.8
• Tamron 12-50mm f/4 VC
• Tamron 60mm f/2

Patent Details