I have stacked photo's with CS4 on a number of occasion's and been very happy with the result but today I tried to stack 12 photo's and the result is horrendous.
This is one of the original files, I have exposure lock on so all the photo's are the same exposure the only difference is the point of focus

and this is to result!!!! I auto aligned the photo's before stacking them, and sugestions please?

thanks Clare
