PathFindIR II accessories are separate and distinct from those of Tau and Quark. PathFindIR II accessories are detailed in the Quickstart Guide.
PathFindIR II, Tau2, and Quark2 are FLIR OEM products. All accessories are optional for OEM products. PathFindIR II, Tau2, and Quark2 each have different optional accessories.
The FLIR Camera & Accessories online store is a useful resource for descriptions and prices for all of FLIR's OEM products.