Tamron SP 100-400mm f/4.5-6.3 VC Lens Patent

tamron sp 100-400mm vc lens

Tamron Japan has filed a new lens patent for Tamron SP 100-400mm f/4.5-6.3 VC lens. This lens could be a smaller and cheaper competitor to the Canon EF 100-400mm f/4.5-5.6L IS II.

Patent Publication No. 2016-126295 (Google Translated)

  • Published 2016.7.11
  • Filing date 2015.1.8
  • Focal length 103.00 247.29 389.05
  • Fno. 4.51 5.81 6.53
  • Half angle of 11.68 4.88 3.11
  • Positive and negative positive negative
  • Rear focus (Group 5)
  • Anti-vibration (third group)

via: EG