Your Challenge was to take take two photos of the same subject at different Apertures. At least f/16 and as wide open as your lens will manage.
Here's Bunnie! again.
Which photo do you think was shot at f/16? Why?
The ISO setting stayed the same (ISO 400) for both photos, but because I changed the Aperture, the Shutter Speed had to move in order to balance out back to a reasonable Exposure.
The shot where the Aperture is f/2.8, the Shutter Speed is 1/1250th of a second. Nice as fast - almost certain to get a crisp, sharp photo.
But at f/16, the Shutter Speed is only 1/80th of a second. A bit slower than we would like in most circumstances, but still acceptable.
Look out for the upcoming post entitled "Depth of Field" where I'll explain a bit about the effect of using a wide Aperture, and why it is a great way to isolate your Subject.
Now the most important question: What is Bunnie! pointing at? Is there something behind me? Answers in the Comments below, or send me a personal message on the Contact page.