The lack of optical low-pass filter plays its part in a maximum of 3,400/lph being resolved between ISO 80 and ISO 400. Resolution takes a slight hit at ISO 800, dropping to 3,200l/ph. At ISO 3200 and ISO 6400 the figure continues to exceed 3,000l/ph. Rotating the ISO dial to its ‘H’ setting revealed a further drop in resolution at ISO 25,600 (2,600l/ph), with 2,400l/ph being resolved at ISO 51,200. Users will find the option to set the ‘H’ setting between ISO 25,600 and ISO 51,200 from the button/dial settings in the main menu.
On the right we show details from our resolution chart test pattern (above). Multiply the number beneath the lines by 200 to give the resolution in lines per picture height (l/ph).