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Qidi burst onto the 3D-printing scene in 2014, and it has since steadily expanded its lineup from enclosed hobby printers to higher-performance machines capable of handling engineering-grade filaments ...

Leica, Panasonic, and Sigma full-frame mirrorless cameras share a common lens system, the L-mount. It's still evolving, but these are the best L-mount lenses we've tested so far. Images, and the ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. David Kindness is a Certified Public Accountant (CPA) and an expert ...