All our articles about optics

View Camera Movements: Tilt, Swing, Rise, Shift, and the Scheimpflug Principle

· 7 min read

View Camera Movements: Tilt, Swing, Rise, Shift, and the Scheimpflug Principle

How view camera movements redistribute the plane of focus and correct perspective, governed by the Scheimpflug condition and the hinge rule.

Stacking Filters: How Factors Multiply, and the Cost in Flare and Vignetting

· 6 min read

Stacking Filters: How Factors Multiply, and the Cost in Flare and Vignetting

When a contrast filter is combined with a polarizer or ND, the filter factors multiply rather than add, and each glass surface adds optical penalties.