The Olympus Zuiko Digital 40-150mm f/3.5-4.5 Lens is an interchangeable telephoto zoom lens designed specifically for Olympus’s Four Thirds-system digital SLR cameras, delivering an 80-300mm 35mm-equivalent focal range on the system’s 2x crop-factor sensor. Perfect for everything from portraits to sports scenes, it’s a practical choice for photographers who need meaningful telephoto reach in a compact, affordable package.
Optically, the lens is built from 13 elements in 10 groups, covering a 40-150mm focal range (a 3.8x zoom ratio) with a variable maximum aperture of f/3.5 at the wide end narrowing to f/4.5 at full telephoto, down to a minimum of f/22. New multi-coating helps reduce ghosting and flare for improved contrast and color accuracy, and a 7-blade diaphragm contributes to the lens’s background rendering, with the f/3.5-4.5 brightness enabling effects like background blurring and perspective compression.
Autofocus is handled by a front-focus system with a floating element design, delivering reliable focus acquisition suited to general shooting, portraits, and moderately paced action, though it’s quick enough for casual subjects rather than fast-moving sports. The lens has a minimum focusing distance of 1.5m (4.92 ft.), yielding a maximum magnification of 0.12x (1:8.3), and uses a rotary, extending zoom design with front element rotation.
Build quality centers on a reliable metal lens mount paired with a plastic barrel, giving the lens good control of optical aberrations and solid build quality for its class. The lens accepts a 58mm filter thread, measures approximately 107-114mm in length by 77mm in diameter, and weighs approximately 425-430g. It does not include optical image stabilization, relying instead on in-camera digital stabilization where available. The lens includes an LH-61B lens hood, and is compatible with Olympus’s TC-14 teleconverter and EX-25 extension tube for extended reach and closer focusing, respectively.
As a Four Thirds-mount lens, the Zuiko Digital 40-150mm f/3.5-4.5 is compatible with Olympus’s Four Thirds-system digital SLR bodies, including the E-1, E-300, and E-500, and can also be adapted to Micro Four Thirds mirrorless cameras using an MMF-series mount adapter.
Key Features
– 40-150mm telephoto zoom for Olympus Four Thirds mount
– Approximately 80-300mm 35mm-equivalent focal range (2x crop factor)
– Maximum aperture f/3.5-4.5 (variable)
– 13 elements in 10 groups optical construction
– New multi-coating
– 7-blade diaphragm
– Front-focus autofocus system with floating element
– Minimum focusing distance of 1.5m (4.92 ft.); 0.12x maximum magnification
– Metal lens mount
– Rotary, extending zoom design
– 58mm filter thread
– No image stabilization (lens-based)
– Includes LH-61B lens hood
– Compatible with TC-14 teleconverter and EX-25 extension tube
– Approximate weight: 425-430g
– Compatible with Olympus Four Thirds-system digital SLR cameras (adaptable to Micro Four Thirds via MMF adapter)

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