Fotodiox Samyang 14mm ve Tokina 16-28mm için filtre tutucu yapmış.
145mm filtre gerekiyor veya 6"x6" 6"x8"

WonderPana 145 System - System Holder and Inner Pinch Lens Cap (for the Canon 14mm Full Frame Lens)
WonderPana 66 System - System Holder, 6" Wide Holder Bracket Upgrade and Lens Cap (for the Tokina 16-28mm Full Frame Lens)