Portrait, e-Portrait, Landscape, Landscape + Portrait, Sport, Night, Night + Portrait, Children, High Key, Low Key, DIS mode, Macro, Nature Macro, Candle, Sunset ...
The Sigma 17-40mm f/1.8 DC is a majorly impressive zoom lens, and fills a huge gap especially for the Canon RF-mount ...
Abstract: In this paper, a simple and efficient Sigma DC-DC converter is proposed and its optimal design has been studied. The integrated transformer includes the forward windings for the efficient ...
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