optical quality quiet focus motor durable construction focal range tripod mount doubles...
filter cost slow lens F4-6.3 a sturdy tripod is almost required bulkiness of lens
The Sigma 50-500 mm lens is a very good lens. It has the ability to take a person through a large focal range, its main attracting point. The lens is large, 86 mm filter size and constructed out of durable materials. These features are the reason it weighs 4.1 pounds. It has become the main...
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