Not sure if I shared this photo in the past. I wanted to blur out the background significantly, so I used my Nikon 80-200 2.8 lens and chose a large aperture setting.
The result was a nice backdrop with good bokeh. The only thing I didn’t like was the overexposed sunlight and the partial cactus on the left. Oh well, I’ll be more careful next time. This was more of a fun casual shoot, so I wasn’t paying too much attention to small details. 🙂
Have you tried playing around with depth of field with your lenses? Don’t think that you need an expensive lens to do it, not so. It can be achieved by most all lenses. It all has to do with the distance of the camera to the subject and the background. Actually, you can try it with the side of a building or table. Have someone or something be about 10-15 ft away from you, focus on the subject including the surroundings in your frame, and take several pictures with different aperture settings. Start with the widest setting (smallest f#) and work your way up.
You should get several good samples. Its a great way to learn about depth of field (DOF). By the way, you can also use a point n shoot camera, simply set it on manual mode and change the aperture number. Have fun!