At 100mm, central sharpness is outstanding from f/4.5 to f/8, excellent from f/11 to ... and this pincushion distortion continues with +1.96% at 200mm, +2.06% at 300mm and +1.88% at 400mm.

Sigma AF 100-400mm f/5-6.3 DG DN OS - Performance At 100mm, central sharpness is excellent from f/5 through to f/11, very good at f/16 and fair at f/22. The edges are excellent at f/5 and f/5.6 ...

Canon's senior leadership team spoke to us about demand for new compact cameras, the challenge of selling accessory ...

Boasting a new optical construction the Nikkor AF-S DX 18-300mm f/3.5-6.3G ED VR is 280g lighter than its predecessor ... With an equivalent focal length of 27-450mm, taking into account the 1.5x DX ...

Introduction Optically the Nikon AF-S Nikkor 80-400 f4.5-5.6G ED VR is completely different from the previous model, 20 elements including 5 of ED (Extra-Low Dispersion) or Super ED Glass arranged in ...

Expand Energy Corp. $112.38 3.57 3.28% ...