Sigma 14mm F18 Art Dg Hsm Lens for Canon Eos Cameras
Our Verdict
The but broad-angle that goes to f/i.8, an entire stop faster than its competitors, this super-fast lens for Canon and Nikon full frame DSLRs, and Sony E-mount mirrorless cameras, enables incredible compositions.
For
- Collects twice the light of any other lens
- Sharper, cleaner and brighter astro-images
- First-class build quality
- Very placidity auto-focus
- Dust and splash-proof
Against
- Heavy at 1.2kg
- Softness in corners
- Expensive
This is a lens that's all nearly speed. I've been photographing the night sky for the last few years, and I've got used to the settings on the manual focus Samyang 14mm f2.8 ED As IF UMC Lens f2.viii for 25 seconds. Easy.
In the dead of night, I simply ever tinker with the ISO. Stepping-up from that £300 lens to this £1,200 lens for astrophotographer, still, doesn't just alter the settings. It changes everything!
Read more:
Samyang'due south AF 14mm F2.8 F is the company's beginning AF lens for Nikon cameras
Features
Available with mounts for total-frame DSLR cameras from Canon, Nikon, Sigma and Sony (E-mount), the Sigma 14mm f/i.eight is all nearly speed. The widest discontinuity 14mm lens in existence, information technology adds a whole extra f-stop, going down to f/1.8.
That has the instant result of being able to do in most 10 seconds – and often far less – what ordinarily takes 25-30 seconds. In short, it finds the Galaxy a lot quicker, and fifty-fifty puts it on the camera's LCD screen.
Although astrophotographers are likely going to use the Sigma 14mm f/1.viii on manual infinity focus, this is an auto-focus lens, and it's nearly completely silent.
Whether you're planning moody images of landscapes covered in deject (a particular skill of wide-bending lenses like this) or photos featuring bokeh (another highlight), the Sigma 14mm f/one.eight is more than versatile than information technology initially seems.
For all its talents, the Sigma Art 14mm is not specially piece of cake to travel with. For starters, information technology weighs 1.12kg, over twice as much equally a 500g Samyang 14mm f/2.viii I'm used to traveling with.
But the existent issue is its unavoidable fisheye-shaped lens, which here has a 114° field of view. Forgetting adding a UV filter to protect this lens. That's a problem astrophotographers are used to with all wide-angle lenses, just on the Sigma Art 14mm its glass actually is very bulbous and, frankly, it costs a lot more than about lenses used for astrophotography.
It sticks out and then much that I was permanently agape of scratching it. However, I fabricated it through a long trip through Namibia with but a little grit to remove – and zero scratches – so this isn't a warning, just something to bear in heed.
The optical design is based on xvi elements, laid out in 11 groups, while the Sigma 14mm f/1.eight besides builds-in a 46-megapixel APS-C X3 direct image sensor. The entire lens has a grit- and splash-proof pattern.
Sample image gallery
Operation
Use the Sigma 14mm f/1.8 for astrophotography and concerns about which ISO setting to use pretty much become a thing of the past. Instead of trying to maximise the amount of light coming into a f/2.8 lens by braving higher and higher ISO settings (and thus battling noise in postal service-editing), having admission to the f/1.viii chops of the Sigma 14mm means ISO can be left on a conservative setting.
Used on the Milky Way at f/1.8 for 10-25 seconds at ISO 3200-4000, the results on a full-frame Canon EOS 6D were impressive. Put just, collecting more calorie-free gives yous a lot more options. For example, a 25-second shot on a f/2.8 lens gets the Milky way looking bright, but only later it's been teased-out on Photoshop.
Using the Sigma Fine art 14mm, the Milky way is correct there in the LCD on the back of the photographic camera, specially if the exposure time is twenty seconds or more. Yous can frame a shot more easily while out in the field, only the real benefit is a clean epitome.
Since the shutter is open up for less time to capture the same amount of low-cal, information technology means using a lower ISO. A shorter exposure and a lower ISO means less dissonance. Shorter exposures likewise means sharper stars with less trail. Information technology's win-win.
In fact, you can add another win, because its f/one.8 setting also ways a shallow depth of field, so when used in daylight it's easy to create shots featuring a clean and seamless bokeh effect. Add to that some fine detail, excellent contrasty colours, and a nearly-silent motorcar-focus, and it's quite a package.
All the same, the Sigma 14mm f/1.eight is not perfect. Information technology chronically weighs downwards y'all camera bag, which is galling if you simply intend to use it occasionally at dark.
Although this lens gives excellent sharpness and item in the center of photos – where information technology's truly fantabulous – we did notice some distortion in the corners of our images. However, it's non nearly as afflicted as cheaper wide-angle lenses, so it'due south slightly unfair to complain.
Specifications
• Full-frame uniform: Yes
• Elements/groups: 16/eleven
• Minimum focus distance: 27cm
• Max magnification: 0.1x
• Manual focus override: Yes
• Focus limit switches: No
• Internal focus: Yep
• Filter size: N/A
• Iris blades: 9
• Weather condition seals: Yes
• Supplied accessories: Hood, soft instance
• Dimensions: 126mm 10 95.4mm
• Weight: 1,170g
Verdict
The Sigma records about twice as much light as whatever other astrophotography lens around, and as such information technology's and so, so useful in creating more impactful night sky photos. In fact, it'south as much about taming this light bucket of a lens every bit it is about getting the most out of it, and generally the all-time results come from using shorter exposures times and a lower ISO, which means clean and sharp images of the night sky.
Non that the Sigma Art 14mm doesn't bring some restrictions. The front element on the lens is super-curved, and since it's impossible to fit filters without a complicated filter holder fix-up, information technology's probable that the Sigma Art 14mm will need to be used naked.
Astrophotographers are used to using wide-angle lenses without filters on, just usually those lenses are a lot less valuable that the Sigma Art 14mm. It requires careful handling, and at one.2kg information technology's a heavyweight selection.
In an age where the slow-glass in smartphones dominates, this lens' fast-glass is something to become excited most. Information technology'due south big, it's heavy and it's expensive, just if yous're into astrophotography, the Sigma 14mm f/i.8 DG HSM Art lens is also unbeatable if yous're heading out into the nighttime.
Source: https://www.digitalcameraworld.com/reviews/sigma-14mm-f18-dg-hsm-art-lens-review
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