This WonderPana Absolute Core Unit Kit from FotodioX includes a WonderPana Absolute Core Unit designed to specifically fit the Tamron SP 15-30mm f/2.8 Di (VC or non-VC) USD lens. Several adapter rings to enable the use of 145mm FotodioX round filters as well as LEE SW-150, Cokin X-Pro, and FotodioX Pro 130mm filter holders are also provided.

The kit contains a WonderPana Absolute 150mm filter holder adapter ring for the Lee SW-150 filter system, a 130mm WonderPana Absolute filter holder adapter ring for both the Cokin X-Pro and FotodioX Pro 130mm filter systems, a 145mm WonderPana Absolute filter adapter ring for 145mm FotodioX round filters, a lens-dedicated retention ring, plus a 145mm inner-pinch lens cap for 145mm FotodioX round filters.

Each individual adapter ring attaches directly to the lens-dedicated retention ring and will not interfere with the Tamron SP 15-30mm f/2.8 Di (VC or non-VC) USD lens's zoom capability. The adapter ring for a Lee SW-150 filter holder, as well as the adapter ring for the Cokin X-Pro and FotodioX Pro 130mm filter holders, securely connect to their compatible filter holders. They each allow for a filter holder's free rotation around the lens to complement the use of LEE SW-150, Cokin X-Pro, or FotodioX Pro 130mm graduated neutral density or other filters that are enhanced by varied positioning. Compatible filters can be screwed into the filter adapter ring for 145mm FotodioX round filters. Each adapter ring is designed to help avoid any vignetting. The retention ring and adapter rings within this kit are constructed using aluminum-alloy for durability while remaining lightweight.

The FotodioX 145mm Center-Pinch Snap-On Lens Cap for Select WonderPana Systems and Filters is a 145mm front lens cap with a squeeze, spring, and snap-on mechanism. It is easy to install as well as remove, and can attach to a WonderPana 145, FreeArc, or Absolute filter holder system in order to protect the front element of a lens that any one of those systems are mounted on. Additionally, this lens cap can be used to protect a non-slim FotodioX WonderPana 145 filter that is mounted on a FotodioX WonderPana 145, FreeArc, or Absolute filter holder system and has no other filters placed in front of it.

Lens caps protect your lens or filter from scratches, fingerprints, and the elements when the lens or filter is not in use.