Digital Camera World on MSN

Are people still buying DSLR lenses in 2025? Sigma says yes – Tamron says no

Sigma's decade-old 150-600mm is still a best-seller, but Tamron exited DSLR production entirely. Let's explore what that ...
EurekAlert!

How scientists designed centered error entropy-based sigma-point Kalman Filter

A spacecraft attitude kinematics model, attitude measurement model, and filter algorithm are three important parts in spacecraft attitude determination, and a high-precision filtering algorithm is the ...