First off, this is a great lens with solid construction, excellent sharpness and a good price for its capabilities. However, if you're shooting something much larger than +/- centimeters, you should probably check out one of Laowa's other offerings. Also, keep in mind that you'll likely need a splint, stacking software, and definitely lots of light. I've had the lens for a few weeks and have barely scratched the surface of its capabilities. The learning curve is very steep when dealing with such a shallow depth of field and the inherent limitations of a lens of this specialization. I held the mother between the thumb and forefinger of my left hand and the camera of my right hand as the young began to emerge from the pouch on the isopod's abdomen. They were less than a millimeter long to give you an idea of how shallow the depth of field was at f4. I really enjoy this lens but it will take time and effort to get the most out of it.
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