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Sigma unveils the world's first full-frame f/1.8 zoom lens. The 28-45mm f/1.8 DG DN Art combines prime speed with zoom versatility.

By: Dan Wells/Jon Swindall
Photo: Masami Tanaka, ISO 100, F 3.2, Shutter 1/500s
A New Chapter in Lens Design: Sigma's Constant f/1.8 Zoom
In the ever-evolving world of photography, certain lenses emerge that challenge our preconceptions and push the boundaries of what's possible. The Sigma 28-45mm f/1.8 DG DN Art is one such lens, defying the notion that zoom lenses can't achieve an f/1.8 aperture. As photography enthusiasts and professionals at Luminous Landscape, we're excited about the potential this groundbreaking piece of glass offers, especially for those working in documentary, low-light situations, and modern portraiture.

Technical Specifications
The Sigma 28-45mm f/1.8 DG DN Art holds the distinction of being the fastest full-frame zoom lens in full production, outpacing Canon's 28-70mm f/2.0 by a third of a stop. Here are the key specifications:

Aperture: Constant f/1.8 aperture throughout the zoom range
Zoom Range: 28-45mm
Weight: 950g (2.09 lbs)
Construction: 18 el...

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Dan Wells, "Shuttterbug" on the trail, is a landscape photographer, long-distance hiker and student in the Master of Divinity program at Harvard Divinity School. He lives in Cambridge, MA when not in wild places photographing and contemplating our connection to the natural world. Dan's images try to capture the spirit he finds in places where, in the worlds of the Wilderness Act of 1964, "Man himself is but a visitor". He has hiked 230 miles of Vermont's Long Trail and 450 miles of the Pacific Crest Trail with his cameras, as well as photographing in numerous National Parks, Seashores and Forests over the years - often in the offseason when few people think to be there. In the summer of 2020, Dan plans to hike a stretch of hundreds of miles on the Pacific Crest Trail, focusing on his own and others' spiritual connection to these special places, and making images that document these connections. Over years of personal work and teaching photography, Dan has used a variety of equipment (presently Nikon Z7 and Fujifilm APS-C). He is looking for the perfect combination of light weight, ruggedness and superb image quality.
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