Compact manoeuvrable and lightweight the ef 70 200mm f4l is usm is a telezoom featuring the very finest in l series optical technology to deliver outstanding optical performance and operability four stop image stabilizer the ef 70 200mm f4l is usm features a four stop image stabilizer is making this an ideal lens for handheld work shutter speeds up to four stops slower than would otherwise be possible can be used with no perceptible increase in image blur when panning horizontal