This is the horizontal split prism focusing screen for the m645, m645j and m645 1000s. It does not fit the Super, Pro or AF. It drops into the camera and is easily installed without tools.
This screen has a couple of small scuffs that are slightly visible through the camera but do not effect use.
![Mamiya m645 645 No.4 Split Prism Focusing Screen [GOOD] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Mam_645_No4_Screen_205_1_2048x.jpg?v=1771020233)
![Mamiya m645 645 No.4 Split Prism Focusing Screen [GOOD] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Mam_645_No4_Screen_205_2_2048x.jpg?v=1771020238)
![Mixed Brands 4x5 Film Holders, Lot Of 11 [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/11FilmHolders-1.jpg?v=1758159244&width=533)
![Mixed Brands 4x5 Film Holders, Lot Of 11 [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/11FilmHolders-3.jpg?v=1758159244&width=533)
![Leica Handgrip M 14405 For Leica M6 [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Leica-HandgripM14405_260408SR_1.jpg?v=1776109519&width=533)
![Leica Handgrip M 14405 For Leica M6 [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Leica-HandgripM14405_260408SR_2.jpg?v=1776109519&width=533)
![Sony 70-200mm f2.8 GM OSS II Telephoto Zoom Lens for E Mount [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Sony-70-200mm_1.jpg?v=1782325467&width=533)
![Sony 70-200mm f2.8 GM OSS II Telephoto Zoom Lens for E Mount [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Sony-70-200mm_2.jpg?v=1782325467&width=533)
![Canon FD 28mm f2.8 (late version) Manual Focus Wide Angle Lens [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Canon-FD-28mm_1.jpg?v=1782325273&width=533)
![Canon FD 28mm f2.8 (late version) Manual Focus Wide Angle Lens [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Canon-FD-28mm_2.jpg?v=1782325274&width=533)
![Canon 50mm f1.4 (late model) Fast Prime Lens for FD Mount [EXC-] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Canon-50mm_1_585fb27d-7532-4721-9f46-a21031fc719b.jpg?v=1782325554&width=533)
![Canon 50mm f1.4 (late model) Fast Prime Lens for FD Mount [EXC-] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Canon-50mm_2_1b291690-0702-4381-90f5-c94b575400e0.jpg?v=1782325554&width=533)
![Olympus OM Zuiko Auto-W 28mm f2.8 Wide Angle Prime Lens [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Olympus-28mm_1.jpg?v=1782325388&width=533)
![Olympus OM Zuiko Auto-W 28mm f2.8 Wide Angle Prime Lens [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Olympus-28mm_2.jpg?v=1782325388&width=533)
![Pentax Super-Takumar 85mm f1.9 FAST Portrait Lens for M42 Screw M [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Pentax-Super-Tak-85mm_1.jpg?v=1782325426&width=533)
![Pentax Super-Takumar 85mm f1.9 FAST Portrait Lens for M42 Screw M [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Pentax-Super-Tak-85mm_2.jpg?v=1782325427&width=533)
![Nikon FM Chrome 35mm Film Camera w/ 50mm f2 AI Lens [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Nikon-FM_1_b536759d-073a-420e-9c24-d88dfb7584ba.jpg?v=1782325343&width=533)
![Nikon FM Chrome 35mm Film Camera w/ 50mm f2 AI Lens [EXC+] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Nikon-FM_2_ee8c7339-1fa5-4aa3-8089-b0a1c3418fa9.jpg?v=1782325343&width=533)
![Sony Zeiss 50mm f1.4 Planar FE ZA T* Prime Lens for E Mount [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Sony-Zeiss-50mm_1.jpg?v=1782325483&width=533)
![Sony Zeiss 50mm f1.4 Planar FE ZA T* Prime Lens for E Mount [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Sony-Zeiss-50mm_2.jpg?v=1782325482&width=533)
![Graflex Graphic 23 6x8 120 Roll Film Back for 4x5 View Camera [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Grafflex-Graphic_1.jpg?v=1782325302&width=533)
![Graflex Graphic 23 6x8 120 Roll Film Back for 4x5 View Camera [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Grafflex-Graphic_2.jpg?v=1782325302&width=533)
![Kern-Paillard 36mm f2.8 AR YVAR D Mount Bolex Cine Lens [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Kern-36mm_1.jpg?v=1782325324&width=533)
![Kern-Paillard 36mm f2.8 AR YVAR D Mount Bolex Cine Lens [EXC] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/Kern-36mm_2.jpg?v=1782325323&width=533)