Amazon.com : Fotodiox WonderPana 145 Core System Kit for Tamron 15-30mm SP f/2.8 Di VC USD Wide-Angle Zoom Lens, Includes WonderPana145 Filter Holder, 145mm Heavy Duty Inner Pinch Lens Cap : Camera
WonderPana Filter Holder for Tamron 15-30mm SP F/2.8 Di VC USD (G1 & G – Fotodiox, Inc. USA
Tamron 15-30mm Review
WonderPana Filter Holder for Tamron 15-30mm SP F/2.8 Di VC USD (G1 & G – Fotodiox, Inc. USA
Amazon.com : NiSi 150mm Filter Holder for Tamron 15-30mm F/2.8 Lens with Landscape CPL S5 for Ultra Wide Lenses from Ikan, Black (NIP-FH150-S5-EN-T1530) : Camera & Photo
Video: Tamron SP 15-30mm F2.8 Di VC USD Field Test: Digital Photography Review
Amazon.com : Kase K150P 150 Filter Holder Adapter for Tamron 15-30mm f/2.8 Di VC USD Lens Easy Installation for 150mm Round Magnetic Filters : Camera & Photo