Technical Challenge Tutorial

 The ISO for this picture was set at 100. The aperture was set at 0. It made the picture really bright.

 The ISO for this picture was set at 100. The aperture was set at -1. It made the picture a little bit darker.

 The ISO for this picture was set at 100.  The aperture was set at -2. It made the picture really dark.

 The ISO for this picture was set at 100. The aperture was set at 0. It made the picture look normal.

 The ISO for this picture was set at 400. The aperture was set at 0. It made the picture a little bit dark.

The ISO for this picture was set at 1600. The aperture was set at 0. It made the picture a little bit lighter.