Kit Lens Background Blur

Background blur is often desired for portraits and other closeup subjects. The modest aperture of the common kit lens cannot provide much of this, thus the popularity of f/2.8 zoom lenses as a kit lens replacement.  The f/2.8 lens used here is the “Tamron AF 17-50mm f/2.8 XR Di II SP LD Aspherical (IF)”. This brief example tries to show the differences for aperture and sensor size. Note that the smaller sensor for the Micro 4/3 camera does diminish the blur a little, compared to the APS-C sensor for the DSLR. Click on any image for a larger view.