Hello All
I am doing manual stacking in photoshop using 3 images loaded into their own layers. Ive had no problem aligning them, but using tutorials online, they say to go Layer - smart object - stack mode -mean.
So I do that and the stack mode icon shows up, but it does absolutely nothing? Am i supposed to do something more? Flatten image does nothing?

Here are screenshots proving it is doing nothing (just opened up main layer picture in a new tab and zoomed into same spot).
My photoshop version is CS6, and I am using DNG files since for some reason I cant get Canon 5D MK III CR2 files to open directly in photoshop.
Thanks in advance for any help!!!
http://i1186.photobucket.com/albums/...ps1b8ca77a.jpg
http://i1186.photobucket.com/albums/...ps3447bec3.jpg