Rayqual Mount Adapter for Fuji X body to Exakta / Topcon lens Made in – JapanHobbyTool
Topcon Eyepiece Adapter C - Accessory – Kamerastore
Adjustable Aperture Adapter For Uv Topcon Ra Lens To Sony E Mount Nex-5/6/7 A7r A7r3 A7r4 A9 A7s A6500 A6300 Ea50 Fs700 Camera - Lens Adapter - AliExpress
FotodioX Adapter for Exakta/Topcon Lens to Sony EXAKTA-SNYE-PRO
Quick Change Pole Adapter for Topcon APT1 and APT2 - SECO Manufacturing
Amazon.com : Fotasy Exakta/Auto Topcon Lens to M43 Adapter, Exacta MFT Adapter, Compatible with Panasonic G9 GH5 II GX7 GX8 GX9 GX850 G90 G91 G95 G100 Olympus E-M1 E-M5 E-M10 I II