Yes the difference layer mode is great in lining up the two layers. The difference layer mode also helps find movement pixel areas quickly but I like to go back to normal mode to better see the effects when brushing/blending the two layers together. It is a quick process.
It is important to make sure the 1 & 4 shot images to be mixed were shot at the same f-stop.
I worked out the exact layer shift amount using test shots of a lens chart set and have it noted down. I think the multi file is a couple pixels wider and a pixel higher. We talked to Hasselblad about doing something in the processing, or providing an exact script but it was not worth their time. No idea why they could not make it match the 1 shot in the processing, besides the loss of a few pixels out of 200mpx.
I shot some auto parts still life images with a 5Dll a little while ago. I am so used to the non anti aliasing of multi-shot that all the multi coloured pixel/speckle like anti aliasing of the details freaked me out. Then it dawned on me that was just what 35mm digital looked like.
Theordoros. I would have to search hard drives for a good sample. PM and I will arrange to let you look at something. Putting a LR jpeg up on here shows nothing.
What is the "difference layer mode"? ...what are the two
layers? ...layers of what? ...you don't have layers (and you don't have two) in MS... you have true colour capturing in each and every one of the pixels because all RGB colour emission of a space in the scene is captured at the same place!
If can't show us examples for MS done in the field you can't claim it can be done! ...pigs don't fly!