The new Canon EF 70–300 f/4–5.6L IS USM zoom is an image-stabilized 'L'-series zoom designed to deliver sharp imagery over a broad zoom range in a carry-on, baggage-friendly package.
The Canon EF 70–300mm f/4–5.6L IS USM lens is expected to be available toward the end of October, 2010, for an approximate retail price of $1,500. Featuring 2 Ultra-Low Dispersion (UD) glass elements to keep chromatic aberration under control, and an internal floating focusing mechanism to maintain uniform sharpness and image quality throughout the zoom range, Canon's EF 70–300 f/4–5.6L IS USM is a good choice for Canon shooters who need sharp imagery with maximum optical flexibility in a space-saving package. The EF 70–300 f/4–5.6L IS USM focuses down to 3.9 feet (1.2m) and accepts 67mm screw-in filters. Weighing a relatively light 2.31 lb (1050g) it might be a mite hefty to to carry around in your pocket, but with a compact length of only 5.6" (143mm) there's little excuse for not packing it into the smallest of camera bags.