Sigma has always createdlarge, heavy lenses. In fact, we have even dissected why that has been the case. Yet, the company has been working on new patents, which include an “industry first” lens as ...

Fully revised and updated tips and advice on how to master the art of low light photography.

In a low-angle target parameter estimation scenario, the backscattered signals from targets are often distorted due to clutter and multipath, which significantly degrades the performance of ...

Photography techniques and tutorials - learn photographyFrom lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use ...

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Researchers have demonstrated that the theoretical optimal tilt for rooftop solar energy production in low-cost buildings in Nigeria is approximately 5.67°. Their modeling suggests to adopt south ...

Angle of arrival estimation of a low-altitude target over the sea surface is a difficult problem due to the multipath coherent interference from the image target. We present a new monopulse technique ...

In conjugated polymers, dihedral angles at bonds connecting their monomers impact the polymers’ properties such as the packing of the polymer chains, bandgap, and conductivity. These properties are ...