One of those stupid stories ... went on a trip to the fantastic city of Mantova (Mantua in English) with all the gear ... except for the arca-swiss plate with which to stand the camera on the tripod that I had brought with me. As it would have been a three-hour drive home to collect it, and another three back, I extemporised the makings of a multi-shot composite as best I could, hand held. These are "Light.jpg" and "Postcard.jpg", both cropped to put the far shore of the lake on the lower thirds line.
And managed to get two frames that don't exactly overlap the way they ought had I been able to use the tripod. It's hard to change your settings just by touch.
Thankfully, a live perspective has saved my image, or will have when I put the finishing touches.
When I tried using Photo 2's stack with live perspective layers, I could change the blend mode to "Difference" and see the area that didn't overlap, but couldn't work out how to re-align all the elements after I had corrected the most obvious mis-match. I did think about using the Blend Option control (which I am still learning; at least, I think still learning), but ended up releasing both layers from the stack and applying the live perspective distortion only to the Light layer. Jiggling that around gave me a reasonable overlap that you can see below, and then it was easy-peasy to delete the sky and water from the overexposed Light, and apply some vibrance and saturation to the darker layer.
C&C welcome
Cheers
MM