A Katyid and a Word on Light Fall-off (Three Photographs)

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I have wanted to post this katyid for some time. Not the most photogenic of insects but it was fun to shoot and it seemed to take no mind of me as it moved around looking for something. In flash photography there is the phenomenon of light fall-off that I have written about before. There are formulas to tell you how much power you need in your flash to reach a certain distance to have the effect you want (if interested look up the inverse square of light). In portraiture, for example, the formula tells you will how far your subject has to be from a white background for that background to become completely black. I shoot in natural surroundings with subjects that have minds of their own and my options are limited. Simply put, if the background is too far away it goes black and these three photos taken essentially in the same place show different effects of flash on the background.