Combining exposure

In macro photography, it's really hard to get the subject in focus. The trick is to combine several different focus to 1 image. That process call stacking. We need to use tripod for best result and also the object has to be perfectly still, for example a flower. :)

Below is a macro image that I've stacked from 3 different images.

Here are the 3 original images

Here is an article regarding stack focus in Photoshop
http://digital-photography-school.com/how-to-focus-stack-macro-images-using-photoshop/