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Olympus 75-300mm and 40-150mm Micro Four Thirds telephoto zooms debut
by Allison Johnson -  8/30/2010

Olympus adds some more zoom power to its Micro Four Thirds lens lineup with the introduction of the M. Zuiko Digital ED 75-300mm f/4.8-6.7 and 40-150mm f/4.0-5.6 telephoto zoom lenses.

Both new lenses feature Olympus's improved AF system for quiet focusing and improved performance speed. These lenses use ED (extra-low dispersion) glass.

M. Zuiko Digital ED 75-300mm f/4.8-6.7
Coupled to one of Olympus's Digital Pen Micro Four Thirds cameras, the 75-30mm lens will offer an equivalent angle of 150-600mm. It measures 2.76 by 4.57 inches and weighs just 15.17 ounces, making it the smallest 600mm lens available according to Olympus. The image below was offered for a little side-by-side comparison with a standard 300mm lens.

M. Zuiko Digital ED 40-150mm f/4.0-5.6
The 40-150mm will offer a more moderate telephoto range than its 75-300mm partner. With the Micro Four Thirds 2x crop factor, it covers a range equivalent to 80-300mm. Its rear focusing mechanism is made up of two elements.

Pricing and availability
The bigger zoom range of the 75-300mm f/4.8-6.7 lens comes with a heavier price tag. It will cost $899.99 and will be available in December. The 40-150mm will cost $299.99 and will be available in November. Both will be made available in black and silver color options.