This strap does fit the Mamiya M645 J Camera. It was a struggle to get it on and I wonder if it will ever come off again but it fits and seems like a decent camera strap.

What is there to say? Nikon is always nikon, reliable and great flash.

Extremely solid and comfortable. Bought for mamiya m645 1000s.

I use this strap for my Mamiya 645E, and the clips fit the lugs properly and securely. I was skeptical of the fact that the strap does have buckles, but after receiving it, you can feel that those buckles are made with VERY strong plastic and shouldn’t give out.The neck pad seemed odd at first with the small grip beads on the inside, but after using it, it was comfortable and helped make sure the strap didn’t move around.Overall, a very good strap for those looking to carry your medium format film cameras around.

I love this mount. It is not compatible with the Nikon FTZ adapter unless you move it from the body to the adapter or buy another mount just for the adapter. I’ve hike a couple mountains and bustled through crowds without fail using this mount.

Part 1 - Minolta MD to Sony NEX adapterTechnically, it slightly overshoots infinity but the issue is easily corrected by dialing back the focus ring just a tad --- Not exact but clearly better than not-at-all.Although very light due to extensive aluminum usage, the build quality and fit-and-finish of the adapter is superb. Connections on the lens and camera mount sides are tight and precise --- absolutely, zero slop. The top of the lens release button is flattened making the lens removal process very easy and comfortable.Other notes:- There are no electrical connections so focus and zoom must be done manually on the lens itself- When mounting the lens, turn the adapter clockwise till you hear a "click"- Tested with a Minolta 85mm f/1.7 Rokkor-X MD lens mounted to a Sony a6000 camera-----------------------Part 2 - Nikon Ai to Sony NEX adapterEdit: Based on my positive experience with the Minolta MD adapter, I also purchased the Nikon Ai adapter later.As with the Minolta MD adapter, the Nikon Ai version focuses beyond infinity a tiny bit. Fortunately, the same solution applies - dial back the focus ring and the horizon will become crystal clear. The build quality is impeccable and the finish is smooth and clean of burrs or machine marks. Connections on both sides are taut and precise with zero play.Additional notes for Nikon Ai adapter:- No electrical connections present so focus and zoom must be done manually on the lens.- Unlike the Minolta MD adapter, mounting the lens for Nikon adapter requires a counter-clockwise turn until you hear the "click" of the locking mechanism- Tested with a Nikon Micro Nikkor 55m f/2.8 Ai-S MF lens mounted to a Sony a6000 camera

It works perfectly with my mamiya RB67, but it can come off the camera sometimes if pulled in a certain way, so watch out.

Very comfortable. It fits my Mamiya 645 like a charm. Not as aesthetically pleasing as I'd like but it gets the job done.