Olympus's ultra-telephoto MFT zoom delivering 600mm equivalent reach at a budget price.
The Olympus M.Zuiko Digital ED 75-300mm f/4.8-6.7 II is a super-telephoto zoom for Micro Four Thirds, launched in 2013. Providing a remarkable 150-600mm equivalent range, it offers extreme telephoto reach that would require enormous and expensive lenses on full-frame systems.
Optical quality is adequate at shorter focal lengths but softens noticeably at 300mm. The slow f/6.7 maximum aperture at the long end limits use to bright conditions and requires high ISO in anything less. There is no optical stabilisation. The lens is remarkably compact and lightweight at 423g for such extreme reach.
Micro Four Thirds mount only, 58mm filter thread. The 1.4x MC-14 teleconverter extends reach to an extraordinary 840mm equivalent. The 75-300mm is one of the most compelling arguments for the MFT system, offering reach that costs thousands more on full-frame.
Cheap used. Check focus accuracy at 300mm and zoom ring smoothness. The slow aperture demands good light but the reach is extraordinary for the size and price. Excellent for casual wildlife and air shows in good conditions.