1024 x768 recommended to avoid the deterioration of the transitions. 
Walk from Clermont-Ferrand to Guéry's vicinity, via Orcival (Romance church of the XII century) 

This slideshow is intended to show the possibilities "of fixing" the images which aren not centered (thanks to the technique worked out by JP.Dollangère:  http://technac.free.fr/Fixer/PTE_objets.zip)
 
 