EF 70-300mm f/4-5.6L: 70mm, f/16, 1/100s, ISO 125 Our lab testing showed the 90D easily met Canon's burst shooting specs right on the nose, and buffer depths and clearing times were both ...

[Ken] recently obtained an attitude indicator—sometimes called an artificial horizon—from an F-4 fighter jet. Unlike some indicators, the F-4’s can rotate to show pitch, roll, and yaw ...

This looks set to change with the first credible rumors of a new Canon RF 200-500mm f/4 lens with a built-in 1.4x converter potentially in the pipeline. Canon already has two optional RF mount ...

(The system is similar to those from other manufacturers, such as Canon's "Ultrasonic Motor ... SDM and smc DA * 300mm F4 ED (IF) SDM following from September. If all goes according to plan ...

For this review, the lens was tested on a Canon EOS 5DS R using Imatest ... starting off at -1.1 stops at f/2.8 but on stopping down to just f/4 reducing to just under half a stop.

though I also use a Canon G5 X Mark II for everyday shooting. For much of my travel photography and astrophotography, I use a Sony A7r, often with a Sony FE 70-300mm f/4.5-5.6 G OSS zoom lens.

It also has an effective image stabilization system which reduces camera shake impressively. Canon's PowerShot cameras are keenly priced and highly feature-packed - they are tremendous for ...

At 15mm, central sharpness is outstanding at f/2.8 and f/4, excellent from f/5.6 to f/16 and very good at f/22. The edges are very good at f/2.8, excellent from f/4 to f8, very good at f/11 and f ...

With Micro Four Thirds' 2x crop factor, the OM System M.Zuiko 150-600mm f/5.0-6.3 IS lens becomes a 300-1200mm monster ...

The Nikkor Z 600mm F6.3 VR S is a big telephoto lens you won't mind carrying thanks to its featherweight optical elements.

And this is even a problem that faces the development of the New Testament canon itself. If there's only one Jesus, why even four gospels, why not just one? So, by the late second and early third ...