When clicked on a image , go directly to the original image ( please help )

what should i add in this code: [gallery columns="1" size="full"] so that when someone clicks on the image it will go directly to the original image and not the resized one?

an example can be found here: https://dailymobile.wordpress.com/2008/04/18/high-quality-nokia-n82-black-pictures/

when i click on the image i want it to go to the original image and not the smaller one (next page). When i now click on the image it does first to another page with a smaller image and when i click on that image it will go to the original image.