I have been having some trouble with focus stacking. This image is 27 pictures taken at f22 then run through photoshops auto align and auto blend. It left me with rectangular regions of blurred image, so I think the software may have had some problems. I am currently looking into other solutions to try to isolate the problem. I cropped out most of the blurred sections but you can still see some areas where it is not as sharp. Any suggestions would be greatly appreciated.