Panorama, stitching

[dieterj70002306]

I can see that it is possible to stitch several images into a (horizontal) panorama.  However is it also possible to then continue and stitch 2 or 3 such panoramas together in the vertical direction creating a large image out of a x/y matric of single images. I would appreciate some feedback, I’m considering subscribing to photoshop CC and lightroom CC to do this merge.

[D Fosse]

Yes, but if the shots are taken with some care, you'll likely get better results doing it all in one go. I recently did one from 6 x 6 frames, thus keeping the original aspect ratio of the camera.

Always enable the lens profile in ACR/Lightroom. This corrects geometric distortion in individual frames. This is very important.

Make sure you have sound and solid overlap, that excludes moving clouds or water. Ideally you should have a focusing rail to eliminate parallax error (by pulling the camera body back so it rotates around the optical center of the lens).

It very often pays to pick a base image that the others align to. Put this at the bottom of the stack. Don't use Photomerge - use Auto-Align, nudge if needed, then Auto-Blend.