[Sigma 14-24mm f2.8]

[Sigma 12-24mm f4]

[Zeiss Distagon T*2.8  & 15]

[Canon 11-24mm f4]

[Sigma 14mm f1.8]

[Canon TS-E17mm f4]

Filter Holder Lens Side Adapter
The outer holder portion can be shared, and the adapter that tucks into the lens allows you to share the holder.
1 holder designed to share many lenses.
By using the 6.7 inches (170 mm) adapter ring set, you can share lenses with 3.7 inches (95 mm), 3.4 inches (86 mm), 3.2 inches (82 mm), 3.0 inches (77 mm).
Compatible with: Sigma 12-24mm f4 170mm holder, ZEISS 15mm f2.8 170mm holder, holder for Sigma 14-24mm f2.8 170mm holder, holder for Canon 11-24mm f4 170mm