Catch that little chipmunk with telephoto in beautifully blurred natural setting.

Here's how to take a charming picture and get an intentionally blurred background (using EF70-300mm f/4-5.6 IS USM):

1. Set the lens as far as possible to the telephoto side (200-300mm), for the longest focusing distance.
2. Select the Av exposure mode and keep the aperture open.
3. Choose natural element as a background--flowers, gleams of sunlight on leaves, etc.
4. Get as close to the subject as possible---quietly.
5. Find ideal framing and angle while checking shot through the LCD monitor.

Shot with open aperture f/5.6

Shot with closed aperture f/16