Amazon.com : Fotodiox Lens Mount Adapter - Pentax K Mount (PK) SLR Lens to Canon EOS (EF-S) Mount SLR Camera Body : Electronics
Amazon.com : K&F Concept M42 Lens to Micro 4/3 Lens Adapter,M42 Screw Mount to Micro Four Thirds M43 MFT Fits for Olympus PE, Panasonic Lumix : Electronics
Amazon.com : Fotodiox Lens Mount Adapter Compatible with M42 (42x1mm) Screw Mount Lenses to Sony E-Mount Cameras : Electronics
Amazon.com : Urth Lens Mount Adapter: Compatible with M42 Lens to Pentax K Camera Body : Electronics
Amazon.com : K&F Concept Lens Mount Adapter Ring M42 42mm Screw to Fuji Fujifilm FX XPro1 X-Pro1 Camera : Electronics
Amazon.com : Fotodiox Pro Lens Mount Adapter - M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body : Electronics
Amazon.com : Fotodiox Lens Mount Adapter - Compatible with Black M42 (42mm x1 Thread Mount) Lens to Canon EOS (EF, EF-S) Mount D/SLR Cameras : Camera Lens Adapters : Electronics
Amazon.com : Fotasy Adjustable M42 Lens to Cannon EF-M Mount Adapter, M42 EFM, M42 EOS M Adapter, Compatible with Canon EF M Mount Mirrorless Cameras EOS M M1 M2 M3 M5 M6
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
Amazon.com : Bower ABSPK Pentax K Mount to M42 Screw Mount Adapter : Camera Lens Adapters : Electronics
Amazon.com: FOTGA Lens Mount Adapter for M42 Mount Lens to Pentax PK K Mount Camera K-S2 K-1 K-3II K-70 K-P : Electronics
Amazon.com : Senyar Adapter Ring, M42 PK Lens Mount Adapter for Pentax PK K Mount Adapter Ring for Focus Infinity M42-PK : Electronics
Amazon.com : Fotodiox Lens Mount Adapter (Blk), M42 Lens (42mm thread Mount) Lens to Pentax (PK) Camera, fits Pentax *ist DS, DS2, D, DL, DL2, K10D, K20D, K100D, K110D, K200D, K100D Super,
Amazon.com : Fotasy PK Lens to M4/3 Adapter, PK to MFT, Compatible with Pentax PK lens Panasonic G7 G9 GF8 GF90 GH5 II GX7 GX8 GX9 GX850 G90 G91 G95 G100 Olympus
Amazon.com : (5 Packs) Fotasy Lens Rear Caps for M42 42mm Screw Mount Lens, M42 Lens Cap, M42 Lens Rear Cap, 42mm Screw Mount Lens Cap, M42 End Cap, fits Pentax Takumar/MamiyaSekor/Helios
Amazon.com : Fotodiox Pro Lens Mount Adapter - M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body : Electronics
Amazon.com : Fotodiox Pro Lens Mount Adapter - M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body : Electronics
Amazon.com : Alstar T-Ring and M42 to 1.25" Telescope Adapter (T-Mount) for 42mm Pentax-k SLR/DSLR Telescope Cameras.(for Camera K-x, K-r, K-01, K-30, K20D, K200D, K2000, K1000, K100D Super, K110D, Etc). : Electronics
Amazon.com : Haoge Lens Mount Adapter for 42mm M42 Mount Lens to Pentax K PK Camera Such as K-7, K-x, K-r, K-5, K-01, K-30, K-5II, K-5IIs, K-500, K-50, K-3, K-S1, K20D, K200D,
Amazon.com : Haoge Lens Mount Adapter for 42mm M42 Mount Lens to Pentax K PK Camera Such as K-7, K-x, K-r, K-5, K-01, K-30, K-5II, K-5IIs, K-500, K-50, K-3, K-S1, K20D, K200D,
Amazon.com : Fotodiox Pro Lens Mount Adapter - M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body & Replacement Rear Lens Cap Compatible with Pentax K Mount DSLR
Amazon.com : K&F Concept Lens Mount Adapter Comaptible for M42 Lens to Sony NEX Alpha E-Mount Camera Compatible with Sony Alpha NEX-7 NEX-6 NEX-5N NEX-5 NEX-C3 NEX-3 with Matting Varnish Design :
Amazon.com : Neewer Lens Mount Adapter for M42 Lens to Sony NEX E-Mount Camera,fits Sony A7 A7S/A7SII A7R/A7RII A7II A3000 A6000 A6300 NEX-3 NEX-3C NEX-5 NEX-5C NEX-5N NEX-5R NEX-6 NEX-7 NEX-VG10/20 :
Amazon.com : Fotasy Copper Adjustable M42 Lens to E Mount Adapter, 42mm Screw Mount to E Mount, Compatible with Sony a7 a7R a7s II III IV a9 a7c Alpha 1 a6600 a6500
