The PT-31 is a dedicated protective cover designed for the SIGMA 100-400mm F5-6.3 DG DN OS | Contemporary lens.
It replaces the tripod socket attachment when the TS-111 Tripod Socket is removed, resting flush within the tripod socket ring to maintain a sleek lens profile and prevent dust or debris from entering the exposed area.
When the tripod collar of the SIGMA 100-400mm F5-6.3 DG DN OS | Contemporary lens is removed, the Protective Cover PT-31 by SIGMA can take its place surrounding the lens barrel.
This is a replacement item for the one originally included with the lens and serves to protect a specific area of the lens barrel when the tripod collar is removed, offering a lighter-weight option for handheld shooting with this versatile telephoto zoom lens.
Key Features
Designed specifically for the 100-400mm Contemporary lens
Covers tripod socket rollers when the collar is removed
Flush fit for a clean and compact lens profile
Lightweight and durable construction
Ideal for handheld shooting