
The f/22 was used to give me adequate depth-of-field to get all parts of the flower in focus. I used ISO 400 to get the shutter speed high enough to allow the flash to overpower all the ambient light in the room. 1/400th of a second did that. Since I was using Canon flashes, I was able to set them to high sync mode to allow the 1/400th of a second shutter speed. The Rogue Flash Bender served two purposes. First it made the light source bigger and therefore made the light less harsh. The second reason I used it was to keep the flash from spilling on the background. This along with the 1/400th second shutter speed kept the background dark and all the clutter from showing up in the photo.