Alain,
I just did a quick test on this smallish pano made up of 13 D800 images + Leica 180mm f2.8 APO (around 200 very sharp megapixels).
1. PS CS6 photomerge/collage mode: - End to End pano creation from Bridge, 240 sec,
- save to fast TB2 Raid 6 array: 230 sec for 4.2 GB multi-layer file
-> total time: 470 secone obvious stitching error, horizon not automatically aligned correctly.
Photoshop used one core at 100% to perform the stitch and used
30 GB RAM.
2. PTGui Pro 10.06- images aligment: 40 sec
- stitch including save to disk of a 4.2 GB multi-layer PS file: 25 sec
-> total time: 65 secNo obvious stitching error, horizon correctly aligned.
PTgui used 4 cores at 100% (total 400%) but only
3 GB of RAM.
I was also able to use PS to do other productive work while PTgui was computing.
These results seem to validate my claims.
Cheers,
Bernard