Sir F. A. Rien wrote:
>>>> The focal length is not an issue - what matters is that you took the
>>>> images from the same location. You are correct about the change in image
>>>> size.
>>>>
>>>> Mike Russell - www.curvemeister.com
>
> Say WHAT ???
>
> You may know curves, but you do not know optics!
>
> Differing focal lengths will alter the visual relationship between objects

You may know optics, but you do not know the implications of "... - what
matters is that you took the images from the same location"

SCNR

> not to mention barrel and other lens distortions.
>
> Technically you can make the pan, but the eye will wonder "What's WRONG?".

no, if you follow the advice

>
> For visually good pans, you should shoot in portrait (vertical) mode, lens
> of 55mm or better, overlap of 15% and USE A TRIPOD with the cameral level!
>