just another sample to share why I need to increase my MACRO pictures DOF or PP and I was discuss How I increase the DOF @ http://liewwk-macro.blogspot.com/2009/01/how-i-increase-my-macro-picture-dof.html
there case 2-3 bugs in a single frame and there are not possible to have all bugs align or focus in single frame so "stacking" will come in to increase the DOF ...
without stack these are 2 original shots (without any stacking)
i. while I shoot, I had this plan out and focus on top (male) tiger beetle
ii. immediately I need to move my focus point fast (try my best without changing the magnification (distance), then I focus on the bottom (female ) tiger beetle
by using technique discuss above or here
I will spend ~5min to stack it to make both male and female in focus within single frame as below
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