Reviews and Problems with Sigma 18-35mm f/1.8 DC HSM
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Sigma 18-35mm F/1.8 DC HSM Lens: On Assignment: Photographing Denver’s Forney Museum Of Transportation
27 June 2014
Excerpt: Sigma’s 18-35mm f/1.8 DC HSM is part of their DC series of lenses designed for APS-C-sized sensors so the imaging circle is matched to the size of the sensor. For this assignment, I used a Canon EOS 60D with a 22.3x14.9mm sensor, producing an equivalent angle of view of a 28-56mm lens. Shooters of Nikon, Pentax, Sigma, and Sony cameras, the other mounts for which the lens is available, will achieve an angle of view equivalent to 27-52mm.
Excerpt: The Sigma 18-35mm f/1.8 DC HSM lens is built for APS-C format cameras, providing a 27-52.5mm equivalent full frame field of view. At 1.78 lbs, the lens is not quite a bear; however, you’ll definitely notice an increase and size and weight from other variable aperture zoom lenses built for APS-C cameras (e.g., Canon’s EF-S 18-135mm IS STM and Nikon’s 18-105mm VR ). I equate the feel close to the Canon EF 24-105mm f/4L IS lens.
Excerpt: When the announcement of Sigma’s new 18–35mm lens arrived, some of our staffers chuckled upon opening the e-mail. Why? Because of what appeared to be a typo in the headline: Instead of f/2.8, it quoted f/1.8 as the maximum aperture! But as we read further, we learned the joke was on us: The lens is the industry’s first f/1.8 constant-aperture zoom, and thus the fastest. It comes in mounts for Canon, Nikon, Pentax, Sigma, and Sony DSLRs.
Excerpt: Handling and features This much anticipated standard zoom lens for APS-C format cameras sports a fast f/1.8 maximum aperture throughout the zoom range and silent internal focusing with full time manual override. We have a final pre-production sample to test here and it will be available to fit Canon, Nikon and Sigma cameras, with a recommended retail price of £799.
Summary: The Sigma 18-35mm F1.8 DC HSM is an extraordinary lens, offering prime-level image quality in the fastest zoom ever made for SLRs. Its 28-50mm equivalent range is a little limiting though, and inconsistent autofocus means that it can be difficult to make the most of the excellent optics when shooting at large apertures.
Pros: Super fast constant F1.8 maximum aperture, Excellent optics, even wide open, Fast, silent autofocus, Solid build quality without being over-heavy, Compatible with Sigma's USB dock and Optimization Pro software
Cons: Restricted zoom range, Needs detailed AF microadjustment for best results, Inconsistent autofocus in difficult conditions even after microadjustment, Physically rather large for a standard zoom
Excerpt: The Sigma 18-35mm f/1.8 is a true game changer. I may not be a technical guru, but I love to snap pictures. I use my camera every day, and am always looking for new, incredible equipment that enhances my ability to capture a moment. For me, and I am sure many of you are coming from a similar place, the tech side can be a bit overwhelming and over my head, but this really isn’t how I go about choosing a new lens.
Excerpt: The word "groundbreaking" seems inadequate for describing the awesomeness of the Sigma 18-35mm f/1.8 DC HSM Art Lens. The primary reason for that awesomeness is the not-seen-in-any-other-zoom-lens f/1.8 aperture. In fact, f/1.8 is 1 1/3 stops wider/faster than the next-widest/fastest f/2.8 zoom lens crowd – allowing more than twice as much light to reach the camera sensor than the tied-for-second place lenses.