Panasonic 25-50mm f1.7 Leica DG Vario-Summilux Lens. Designed to work seamlessly with the Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 ASPH lens as the step-up in focal range. Essentially, this 25-50mm lens works as the second half of an enhanced two-lens zoom system.
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