Photomerge

[FrankBirinyi]

Folks, I am trying to do Photomerge in Photoshop (PS). PS's final result, however, gives me a view that has perspective, and I do not want perspective. As you can see, the final composite image gets shorter and shorter in height (as you view it from left to right) despite the original images all being the same exact size (2992x3992). What I want of course is for the final composite to be roughly the same height from left to right, given that the originals are the same height.

I took a series of 6 (drone) shots (shown in Lightroom), all taken from the same height (100 meters). My PS dialogue box for Photomerge shows "Auto" to be selected.

Where am I going wrong?

[c.pfaffenbichler]

Wrong? Neither you nor Photoshop may be »wrong« per se here.

But there is perspectival shortening in the original images themselves (see the sides of the houses that are visible beneath the roofs) that makes an »isometric« interpretation inapplicable, I guess. 

You can either try if other options (cylindrical for example) provide the result you want or convert the current result to a Smart Object and transform that to counteract the unwanted foreshortening.  

[D Fosse]

This highlights the shortcomings of the fully automated Photomerge script, as opposed to doing it in individual steps, which gives you much more control.

Put the center frame at the bottom of the stack. This is the one the others align to.

So don't use Photomerge. Stack them first, as per above, and then Edit > Auto-Align followed by Auto-Merge. This also gives you the possibility to nudge individual frames a couple of pixels, which can sometimes be necessary.