Pre-installed with two pairs of plastic filter slots, this aluminum alloy filter holder is initially configured to accommodate two filters. Use of the filter holder is easily accomplished by first sliding it over the Tamron SP 15-30mm f/2.8 Di (VC or non-VC) USD or Tamron SP 15-30mm f/2.8 Di VC USD G2 lens's integrated hood. Afterward, the filter holder's hinged clamp can be closed, which features a screw-in locking knob to ensure a reliable connection. The locking knob can be temporarily loosened, allowing the holder to be rotated 360°, permitting the use of graduated neutral density and other filters that are enhanced by varied positioning.
To help prevent stray light, which could have unwanted effects on exposure, from coming in-between an installed filter and a connected lens, two adhesive gaskets are included along the front of this Kase 150mm Filter Holder. These gaskets are designed to be positioned so that, together, they form a seal between the filter holder's slots.
An additional pair of filter holder slots is provided, as well as a microfiber cleaning cloth..