Comment: I use ISO800 as my default to allow a 1/500 shutter speed (this was a windy day so 1/1000 was needed. My Canon 70D does have a built in low light 4-shot burst mode which is processed in the camera, but for hand-held macro work there is too much movement. I've tried many burst options, but none work! Charlesjsharp (talk) 08:53, 6 June 2017 (UTC)[reply]