Hi Aldo, the mantis and fly was a single frame. I do sometimes 'stack' images to increase depth of field. I use an old version of photoshop ( CS3 extended). I shoot in RAW so have to use Adobes free DNG convertor to convert Canon RAW files into a format my old version of photoshop can use. When I stack images for depth of field I use a programme called Zerene Stacker. With Zerene there is a small learning curve, with photoshop the learning curve can be big, or as big as you want to make it.
If I could remember how I posted that mantis shot I'd post a couple more .
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