Fotodiox FD-PK-Pro Pro Lens Mount Adapter - Canon FD & FL 35 mm SLR Lens To Pentax K Mount SLR Camera Body with Built in Aperture Control Dial - Walmart.com
Baader Special C-Adapter for the old Pentax S (= T-1) Thread
K&F Concept M34131 Pentax 67 Lenses to Canon EF Lens Mount Adapter with tripod mount - KENTFAITH
FotodioX Pro Lens Mount Adapter for Pentax 645 Lens P645-EOS-PRO
Amazon.com : FocusFoto 9th Gen AF Confirm Adapter for Pentax K PK Lens to Canon EOS EF EF-S Mount Camera 80D 77D 70D 60D 5D Mark II III 5D2 5D3 7D 6D
Rayqual Pentax DA lens (without aperture ring) to Canon EOS Camera Body Lens Adapter: shop.CameraQuest.com
Lens Mount Adapter for Pentax K/PK Mount Lens to Canon EOS M EF-M M2 M3 M5 M6 M10 M50 M100 Mirrorless Camera Adapter Ring : Electronics - Amazon.com
Pentax 110 P110 Lens to Canon EOS M Mount Adapter for M50 M100 M10 M6 M5 M3 | eBay
Generic Pentax K - Canon EF (PK - EOS) Adapter - Lens Adapter
Pentax 645 SLR Lens to Canon EOS Mount SLR Camera Body Adapter – Fotodiox, Inc. USA
K&F Adapter for Pentax 67 Mount Lens to Canon EOS EF Mount 500D 5D 60D 7D 650D | eBay