This feature differs from Sigma 18-35mm f/1.8 from other bright lenses, which at maximum aperture are usually fuzzier. The sharpness at maximum aperture is already very high.
#Sigma 18 35 art manual#
9 The Sigma 18-35mm f/1.8 elements: 1 – auto or manual focus switch, 2 – focus ring, 3 – focal length ring. This is very useful during low light conditions and stargazing when you must use the manual focus. A very important thing is, that both zoom and sharpness are marked (Pic.
The handling with the lens is comfortable as long as you are comfortable with a reverse rotation on the focus ring. One downside of the lens construction is the lack of a rubber gasket on the mount to prevent dust and other debris from getting into the camera. The optical elements have been made with high-grade glass. The lens has a plastic shell with a mixture of metallic parts. This is the first zoom lens in history with a constant f/1.8 aperture. The construction of the lens is very solid and much better than the standard kit lens. The basic cons of this lens are its size (big and heavy) and a silly zoom range. Moreover, this lens is wide-open with silent focus. The lens has a lot of pros, and the most important is ultra sharpness in every setting. If you don’t mind the weight the Sigma 18-35mm f1.8 will be a fantastic choice for you. First of all this lens is simply extraordinary. I would like to show all its features below. The Sigma 18-35mm is the best lens, which I actually have, and the most expensive one. I bought this lens brand new to avoid the next disappointments, that I experienced with previous orders. I decided to own only one of these two: Sigma 18-35mm, at least for the time being. I conceived that Sigma 17-70 f2.8-4.0 is fine, but frankly speaking, this lens can be replaced by Sigma 18-35mm for someone, who already has a zoom range from 55mm (in Nikkor 55-300mm f3.5 – 5.6) and a quite good macro is not highly demanded. Initially, I was going to have 2 sigma lenses: Sigma 17-70 f2.8 – 4.5 Macro as a kit lens and Sigma 18-35mm for occasional night photography and stargazing. The Sigma 18-35mm f1.8 Art is not a kit lens, although can be used on a day-to-day basis. I bought it in January and I am very happy with it.
Canon EF to Nikon).I am describing the final lens, that I got after my bumpy ride with Nikkor 18-55mm f3.5-5.6 and other kit lenses. It is also worth to note that the lens is compatible to Sigma's USB dock (for AF tuning) and they also offer a mount conversion service (e.g. Of course, this applies to phase detection AF whereas in Live View mode you shouldn't expect wonders here. The 18-35mm f/1.8 DC HSM | A features Sigma's ultrasonic AF drive (HSM="Hypersonic") which is similar to Canon's USM both in terms of high speed and negligible noise. A petal-shaped lens hood is part of the package. The broad zoom and focus rings are nicely rubberized and operate super smooth and, of course, without having play. It is a "true" internal focusing lens thus it doesn't even extend during focusing operations. Besides some metal parts, Sigma uses a new material called TSC (Thermally Stable Composite) which contributes to the high quality perception. The build quality of the Sigma lens is certainly nothing short outstanding. However, it received enthusiastic comments from (potential) users so we may be rather lonely cowboys with these preliminary thoughts.
#Sigma 18 35 art full#
Moreover this Sigma lens is also as expensive, as big and as heavy as its full format counterparts which negates a bit the idea of having an APS-C format camera in the first place. After all, it is just a "29-56mm f/2.8" when thinking in equivalent full format range and depth-of-field terms or to phrase it differently - you may even raise the question whether it is a standard zoom lens with its 2x zoom ratio. Now even so we still weren't overly impressed when the lens was announced. As such, the Sigma is the fastest (mass production) DSLR zoom lens ever. The exciting thing about it is, of course, the max. Given the focal length range you may expect a full format ultra-wide zoom lens but it has been exclusively designed for the APS-C scope - hence also the "DC" in the lens name. The lens produced quite some buzz when it was released earlier this year. our test of the Sigma 18-35mm f/1.8 DC HSM "Art" (Canon mount, Nikon will follow eventually). We are a little late with this review but finally here it is. Review by Klaus Schroiff, published May 2014
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