![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 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](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71KzpNBNQuL._AC_UF894,1000_QL80_.jpg)
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
![M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body Pro Mount Adapter – Fotodiox, Inc. USA M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body Pro Mount Adapter – Fotodiox, Inc. USA](https://cdn.shopify.com/s/files/1/1415/1308/products/m42-pentaxk-01_500x.jpg?v=1479143609)
M42 Screw Mount SLR Lens to Pentax K (PK) Mount SLR Camera Body Pro Mount Adapter – Fotodiox, Inc. USA
![K&f Concept Lens Mount Adapter For M42 (zeiss,pentax,praktica,mamiya,zenit) Screw Mount Lenses To Fujifilm Microless Cameras - Lens Adapter - AliExpress K&f Concept Lens Mount Adapter For M42 (zeiss,pentax,praktica,mamiya,zenit) Screw Mount Lenses To Fujifilm Microless Cameras - Lens Adapter - AliExpress](https://ae01.alicdn.com/kf/HTB1LWZhRFXXXXcLXFXXq6xXFXXXM/K-F-CONCEPT-Lens-Mount-Adapter-For-M42-Zeiss-Pentax-Praktica-Mamiya-Zenit-Screw-Mount-Lenses.jpg_Q90.jpg_.webp)
K&f Concept Lens Mount Adapter For M42 (zeiss,pentax,praktica,mamiya,zenit) Screw Mount Lenses To Fujifilm Microless Cameras - Lens Adapter - AliExpress
![Pentax Mount Adapter K (M42 Screwmount to K Mount) Reviews - Pentax K-mount Teleconverters and Adapters - Pentax Lens Reviews & Lens Database Pentax Mount Adapter K (M42 Screwmount to K Mount) Reviews - Pentax K-mount Teleconverters and Adapters - Pentax Lens Reviews & Lens Database](https://www.pentaxforums.com/lensreviews/data/50/Pentax_Mount_Adapter_K.jpg)