Canon 7D Mark II vs Canon EOS-1D X vs Nikon D4s vs Samsung NX1: 15 things you need to know

Canon 7D Mark II vs Canon EOS-1D X vs Nikon D4s vs Samsung NX1: 15 things you need to know

It’s a four-way fight to the finish! But which of these sporting giants will be first over the line? We check the specs that count in our Canon 7D Mark II vs Canon EOS-1D X vs Nikon D4s vs Samsung NX1 comparison.

Samsung announces Wi-Fi-enabled EX2F with f/1.4 lens

Samsung EX2F with Wi-Fi capability unveiled

Samsung has unveiled the 12Mp EX2F which follows on from the EX1, adding Wi-Fi capability to allow image sharing direct from the camera.

The other big news is that the EX2F has an even bigger maximum aperture than the EX1, pushing up to f/1.4 from f/1.8. This means it has the largest aperture of any compact camera currently available.

DO or Di? Your lens markings explained

DO or Di? All your lens markings explained

Does your lens has more letters after its name than a retired rocket scientist. What do all these lens markings mean? You can refer to a lens simply by the name of the manufacturer, the focal length, and its maximum aperture – a Sigma 70-300mm f/4-5.6, say, or Canon 50mm f/1.4. But as lenses have often evolved from decades of development, they usually have a line of additional letters after their names, stamped on the barrel or printed on the boxes.

Some lens markings are about manufacturer branding – defining a more recent range, or a lens that’s built to higher standards than another. Others are to do with the optics themselves, and to highlight specific technologies used in the lens construction. In the jargon-busting guide below, we’ll translate these lens markings for you.