Adapter ring to use PENTACON-six (Kiev-C) lenses on a Pentax-645 camera body
Pentacon Six / M42
Pentacon Six mount - Wikipedia
KIPON Tilt/Shift Lens Mount Adapter for Pentacon Six TS P6-X1D
EBTOOLS Lens Adapter , 7.4*7.4*3.5cm 1 PCS Super Smooth 76g Lens Mount Adapter, Black Kiev 60 For Pentacon Six (P6) - Walmart.com
Pentacon 6 SLR Lens to Micro Four Thirds (MFT, M4/3) Mount Mirrorless Camera Body Adapter – Fotodiox, Inc. USA
Kiev 88 / Pentacon Six
Sixty Days and Counting with a Pentacon Six - Casual Photophile
FotodioX Pentacon 6 Lens to FUJIFILM G-Mount Camera P6-GFX-PRO
Other accessories for Pentacon Six mount cameras
Hartblei Adapter for Pentacon Six 6 Mount Lens to Fujifilm GFX 50S 50R 100S Cameras with Tripod
P60 GFX Lens Adapter Suit for Pentacon 6 / Kiev 60Lens to Fujifilm G GFX100 GFX50S GFX50R Camera Adapter|Lens Adapter| - AliExpress
Pentacon Six (Kiev 60) P6 Exakta 66 Adapter guide | Vintage Camera Lenses
PENTACON SIX ADAPTER for CARL ZEISS / PENTACON & OTHER BRANDS LENSES | eBay
Pro Adapter - Pentacon 6 (Kiev 66) Lens to Fujifilm G-Mount Digital Cameras – Fotodiox, Inc. USA
Pentacon Six / Mamiya 645
Amazon.com : K&F Concept Lens Mount Adapter Compatible with Pentacon 6 Kiev 60 Lens to Nikon AI F Mount Camera D90 D300 D700 D7100 D7000 (Pentacon-Nikon) : Electronics
Hartblei Adapter for Pentacon Six 6 Mount Lens to Fujifilm GFX 50S 50R 100S Cameras with Tripod
FotodioX Pro Lens Mount Adapter Kit for Pentac P6-EOS-GFX-PRO