Martin Amis: Contributor Spotlight ULTIMATE Colour Grading in Photoshop – WEEK 1 Katja Kemnitz: Contributor Spotlight Katja Kemnitz is a photographer based in Germany.Click here to explore Katja’s portfolio of work… AA1587052 AA11387548 AA11050537 AA1890875 AA1812796 AA212072 AA1489540 AA1523487 AA1594381 AA1533794