The Panasonic 15mm f/1.7 Leica Summilux DG ASPH is a great little lens for nature subjects — including astrophotography — thanks to a 30mm equivalent focal length and great image quality. Why you can ...
At 24mm, central sharpness is excellent from f/4 to f/11 and very good at f/16 and f/22. The edges are very good from f/4 to f/8, good at f/11 but only fair at f/16 and f/22. At 35mm, central ...
Optical microscopy is an indispensable tool for biomedical research. Yet, the same structures that make biological samples interesting to study under a microscope (such as cells, vasculature and ...
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