Just wondered if anyone has tried stacking images. Its not as difficult as you think if you have CS4/5 (not sure of 3). If not and you would like to have ago then use the free
CombineZP.
What is stacking? As most of you are aware, macro photography has a very shallow DOF and stacking is away of creating a larger DOF. You must be on a tripod (although PS aligns images for you, but best with a tripod). focus on the front of the object and then focus on the next area further behind and so on, until you have taken three or more images and you have covered the area.
Just a note here, don't get too close as the distance of the lens moving from front to back is too much for the software and it won't work. You have to experiment and find out what works at what distance. If it fails to come together on the software you usually are too close.
Put the images into the software (make them TIFF or JPEG) and the stacking image software aligns the image, pulls out the sharp pixels and you should have your result. I have used it large objects, but mainly on macro. You try on on a coin or a watch, anything to get your hand in and you will be hooked. And at the end of the day you get an image with greater DOF