Pentax 38100 Tripod Mount for DA 300mm and DA 60-250mm
Pentax | Tripod Adapter TP-3 – PENTAX - Official Store
Perfect fit tripod collar for the Pentax Adapter Q for K-Mount Lens - PentaxForums.com
Ricoh/Pentax Pentax Tripod Adapter U
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Buy Ex Rental Pentax 67 Lenses to Canon EF Lens Mount Adapter | Topic Rentals | Topic Store
Anillo adaptador de lente con trípode, montaje de 1/4 pulgadas para lentes Pentax K PK y SONY NEX E, montaje NEX 7 NEX 5|lens adapter ring|adapter ringe mount - AliExpress