The EF 75-300mm f/4-5.6 III from Canon is a 4x zoom characterized by its relatively lightweight design and compact form factor. Benefitting image quality, a Super Spectra coating has been applied to individual elements to reduce lens flare and ghosting in order to achieve high contrast and accurate colors. Additionally, it features a seven-blade diaphragm to produce smooth and pleasing bokeh. Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions. Seven-blade diaphragm contributes to a pleasing bokeh quality.