![]() ![]() The Sigma 105mm f/2.8 DG DN is designed for full-frame Sony mirrorless cameras, so when used on a Sony mirrorless that has an APS-C sensor (like the Sony Alpha a6400 for example), the effective focal length is a tad longer than 150mm. Sony Alpha a7RIII and Sigma 105mm f/2.8 DG DN Macro, 1/50 sec at f/16 and ISO 6400. Tree Frogs, photographed at the Atlanta Botanical Gardens by Brett Wells, Sigma Education Coordinator. It’s also an important advantage when photographing noxious things like poisonous snakes. Among other advantages, this gives you more room to arrange lights around the subject. As a rule, when using a 100mm macro instead of a 50mm macro you can be twice as far away from the subject and still achieve the same image. The important difference between a 50mm macro lens and a 100mm macro lens is the distance each must be from the subject to attain a 1:1 reproduction ratio. Back in the day, 50mm macro lenses were often used as the normal, everyday lens by film shooters. Nonetheless, macro lenses on the whole are usually exceptionally sharp at all distances and are often the best lenses offered by any manufacturer. Generally speaking, macro lenses are optimized for close-up performance and, compared to standard lenses, are more capable of capturing flat subjects. Sony Alpha a7III and Sigma 105mm f/2.8 DG DN macro, 1/125 sec at f/8 and ISO 400. Purple Flower photographed by Sigma Marketing Specialist Nick Vrona. The Sigma 105mm f/2.8 DG DN macro lens achieves this magic 1:1 ratio without an accessory extension tube. We call this 1:1 reproduction, meaning that the subject and its recorded image are the same size. An inch worm that’s exactly one inch long will be recorded on the camera’s sensor precisely the same length, i.e., one inch long. Macro lenses, by definition, are capable of capturing subjects life-size. Art lenses are designed to achieve exceptional optical performance and are ideally suited for creative and artistic applications, according to Sigma’s overall vision of lenses. We took a thorough look at the Sigma 105mm f/2.8 DG DN macro lens in a Sony mount for this hands-on review.ĭesignated as part of Sigma’s popular Art line of accessory lenses, the 105mm f/2.8 is useful as a short, fast telephoto, as a 1:1 macro lens and as a portrait lens. ![]() It focuses continuously down to life-size (1:1 reproduction ratio) at the minimum focusing distance of 11.6 inches and offers considerable versatility beyond macro applications. Sigma recently introduced the 105mm f/2.8 DG DN macro lens for L mount and Sony FE mount mirrorless cameras. ![]()
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