Haida 150 Series Filter Holder for Tamron 15-30mm f/2.8 Di VC USD lens Dedicated for Tamron 15mm-30mm f/2.8 Di VC USD & Tamron SP 15-30mm f2.8 G2 lensese 360 rotatable, easy locking Made of high quality industrial grade aluminium 2 slots to hold 1 or 2 150mm insert filters. Includes parts needed to add a 3rd slot Compatible with all brands of 150mm filters including Lee