New third party lenses coming soon: Sigma 100-400mm f/5-6.3 DG DN OS and Tokina ATX-i 11-20mm f/2.8 CF

There are reports of two new third party lenses for Nikon F-mount expected to be announced in the next few weeks:

Sigma 100-400mm f/5-6.3 DG DN OS:

  • The lens should be announced soon, probably in the next 1-2 weeks
  • Update: this lens may not be available for Nikon F-mount

Tokina ATX-i 11-20mm f/2.8 CF (pictured above):

  • The lens will be launched in July
  • Aperture ratio: f/2.8
  • Optical construction: 14 lenses in 12 groups
  • Angle of view: 104-72°
  • Aperture blades: 9
  • Minimum distance: 0.28 m
  • Filter size: 82 mm
  • Lens length: 94.3 mm (Canon), 91.8 mm (Nikon)
  • Weight: 570 g (Canon), 550 g (Nikon)
  • Other: lens hood, front and rear covers included
  • Available for Canon EF and Nikon F
  • Price around €600
  • Lens design:

For comparison, here is the lens design of the current Tokina AT-X 11-20mm f/2.8 PRO DX model:

The optical design looks identical. The changes seem to be only in the lens housing:

Here is a report from

The changes obviously only affect the outer, modernized appearance of the frame and the coating of the front lens: According to Tokina, it has a new water-repellent anti-reflective multi-coating, which improves light transmission and minimizes reflections. The coating also makes cleaning the surface easier. The Nikon version of the Tokina has a silent drive focusing motor (SD-M) in combination with a GMR sensor. Apparently the predecessor didn’t have that. This explains the changes in dimensions and weights.

Via Nokishita

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