Jon Tarrant

After a short summer break, the lenses 'blog is back to answer the persistent "prime lens versus zoom" question that asks which is better overall; a prime lens or a…

Lens manufacturers use their optical expertise for much more than camera lenses alone. As an example, here’s a quick tour around the Nikon technology website, which highlights some of the…

To achieve focus you normally need to change something about the positions of one or more elements within a lens or with respect to the sensor. Now, however, there’s a…

Great handling, great images, and not too bad a price - this Nikkor prime lens is a cracker.

It may be pricey, but the Canon 16-35mm full-frame lens is well established. What Digital Camera's Canon 16-35mm lens review finds out if it's still worth splashing out for…

This new lens, the Nikon 16-35mm, is the world’s first ultra-wide zoom to offer vibration reduction (VR-II) technology. The What Digital Camera Nikon AF-S 16-35mm f/4G review finds out how…

It is one thing to test a lens but what effect does the host camera body have on the results? A new website from DxO Labs, DxO Mark, reveals some…

The language of lenses has become simplified in recent years but, although the comparison between achromatic and apochromatic lenses is rarely discussed, the term “apochromatic” is one that has survived.…

Cyberspace offers its own opportunities to preview the effects of lenses that you might be thinking of buying: welcome to the world of lens simulators.

If you use a full-frame lens on a smaller-format sensor, what happens to image quality? Does using only the centre of the lens field improve image quality or are matters…

Love them or hate them, fisheye lenses have a place in photography – albeit probably a minor one. Fisheye lenses also require a rethink when it comes to explaining their…