Ebay Sigma 19mm F28 Dn Art Lens for Sony Emount Cameras Black

Ii wide-bending primes Sony APS-C E-mount users volition be familiar with are the Sigma 19mm f/2.8 DN Art and the Sony E 20mm f/2.8. Both offer an angle of view that isn't far off the 28mm equivalent, making them a popular choice amongst photographers who mostly shoot street with wide angle lenses, also as those who enjoy mural and cityscapes.

Because the ii lenses are very similar on paper, we decided to conduct this side-by-side comparing to meet how they actually perform out in the field on our a6300. We hope it helps y'all come to a decision about which one to purchase!

Ideals statement: Nosotros bought the Sony 20mm f/2.8 for our ain personal use whereas the Sigma 19mm f/2.viii was loaned to us for 2 weeks. We were non asked to write anything about these products, nor were nosotros provided with any sort of compensation. Within the commodity, there are affiliate links. If you buy something after clicking the link, we will receive a small commission. To know more virtually our ethics, you can visit our total disclosure page. Thank you!

[toc heading_levels="2″]

Primary Specifications

Sigma 19mm f/2.8 DN Art

Mount: Sony East-mount
Format: APS-C
Focal length: 19mm (28.5mm in 35mm equivalent terms)
Lens configuration: eight elements in 6 groups
Lens coating: Super Multi-Layer Blanket
Angle of view: 59.3°
Minimum focusing distance: 20cm
Magnification: 0.135x
Aperture blades: vii circular blades
Aperture range: 2.8 to 22
Filter diameter: 46mm
Conditions-sealing: N/A
Optical stabilisation: Northward/A
Dimensions: threescore.eight 10 45.7mm
Weight: 150g

Sony E 20mm f/2.viii

Mountain: Sony E-mount
Format: APS-C
Focal length: 20mm (30mm in 35mm equivalent terms)
Lens configuration: half dozen elements in 6 groups
Lens coating: N/A
Angle of view: 70°
Minimum focusing distance: 20cm
Magnification: 0.12x
Discontinuity blades: vii circular blades
Aperture range: ii.8 to 16
Filter diameter:49mm
Weather-sealing: N/A
Optical stabilisation: N/A
Dimensions: 62.6 x 20.4mm
Weight: 69g

Design and ease of use

Despite having more or less the same circumference, the Sigma 19mm is approximately twice the height and weight of the Sony 20mm pancake lens. That being said, both lenses are very light and compact and adjust all cameras in the a5000/a6000 serial perfectly.

The Sigma is mostly made of high quality plastics with a brass bayonet mount whereas the latter has an aluminium crush with a moulded plastic interior and a metal mount. Sadly neither lens features weatherproofing, so take care when using them outdoors in inclement conditions.

In terms of physical features, there isn't all that much to talk most. Both have a wing-by-wire focus ring merely that of the Sony is sparse and ridged while the Sigma'south is fairly large and shine. Other features they accept in common are a filter thread, prune-on lens cap and twist-on lens plastic hood. Somewhat annoyingly, you can't attach the hood and cap to the Sony lens at the aforementioned time.

The two lenses use dissimilar motor types – a stepper motor on the Sony and a linear AF motor on the Sigma – only both are capable of precise and serenity autofocusing.

The samples you lot see here both take a blackness end merely for those who ain a silver APS-C body, it's worth keeping in mind that there is besides a silver version of the Sigma lens.

Optical quality – Through the lens

Important note: Sony RAW files aren't automatically corrected when you import them into an imaging software such as Adobe Lightroom. To obtain the best results, you have to apply the correct lens profile in the Lens Corrections department, which is what I've done for all the images in this department. If you more often than not use SOOC JPGs, y'all tin gear up the lens corrections (shading, chromatic aberration and baloney) in the Lens Comp. carte to Machine.

Sharpness

First let's take a expect at the sharpness of these 2 lenses taken at a distance of around 5m.

At the centre, you'll notice that the Sigma 19mm is visibly sharper than the Sony 20mm at their shared fastest aperture of f/2.8.

Once you stop down to f/4 and f/5.6 however, the differences are then small that it becomes difficult to tell the two lenses autonomously. That said, I would withal say the Sigma retains a very pocket-size reward over the Sony. These are also the values at which both lenses display the all-time performance.

Both lenses start to lose some sharpness from f/viii onwards but just become unusably soft at f/16. Once once again, it is very difficult to tell the two apart if nosotros look at sharpness solitary.

Turning to the corner performance, there are even fewer differences to mention. Perhaps the only thing worth pointing out is that the Sony – in the accented extreme corners – is softer than the Sigma up until f/viii. Below you can come across some examples taken at f/2.8, f/5.6 and f/11.

Height performance is found at around f/5.6 in the case of both lenses only all values upwardly to f/11 are fairly skillful.

Bokeh / Minimum focus distance

Few people would buy a broad-angle prime primarily for its bokeh qualities but since both the Sigma 19mm and Sony 20mm share a reasonably fast maximum discontinuity of f/two.8, it's worth taking a quick look at how the background mistiness compares.

a6300, 1/4000, f/2.eight, ISO 200 – Sigma 19mm f/ii.8

a6300, one/4000, f/two.viii, ISO 200 – Sony 20mm f/ii.8

a6300, 1/800, f/two.8, ISO 200 – Sigma 19mm f/2.8

a6300, 1/1250, f/two.8, ISO 200 – Sony 20mm f/2.8

Equally you can see from the 2 examples to a higher place, the rendering is extremely similar with the exception of the bokeh balls which are rounder in images taken with the Sony lens. I wouldn't call the bokeh particularly pleasant simply if you use the lenses at their shared minimum focus distance of 20cm, yous can become decent results.

Sony 20mm f/2.8 (minimum focus altitude)

Sigma 19mm f/2.8 (minimum focus altitude)

Flare

Although the Sigma benefits from Super Multi-Layer Blanket to reduce flare and ghosting, we plant in our tests that the ii lenses actually perform in a very like fashion in terms of flare resistance. If the sun is in your frame, you lot tin expect a green orb of some shape or form to appear in your image as you tin can see in the examples beneath.

If the light source is outside your frame, y'all should have fewer issues with flare if you attach the provided lens hoods.

Chromatic aberration

Both lenses suffer from some lateral chromatic aberration in areas of high dissimilarity only in the case of the Sigma, it is much more notable even at f/v.6. With the Sony, it ordinarily disappears by f/4. As always, you can make clean it up quite nicely in post-production software applications such every bit Lightroom, then I don't consider information technology a huge concern.

Baloney and Vignetting

As with any wide-bending lens, moderate barrel distortion is a given. If you make sure to apply the correct lens profile either in-camera or in a mail service-production software to the two lenses, it shouldn't pose a problem in any of your images. Below you tin can see the divergence between images that accept been corrected with the profile and those that have non.

Sigma 19mm with lens profile

Sigma 19mm without lens profile

Sony 20mm with lens contour

Sony 20mm without lens profile

Happily neither lens shows any strong vignetting – non even at f/2.8 – so that'south ane less thing to worry almost!

Field of view

The departure in field of view is exactly what you'd wait from these ii lenses: the Sigma is marginally wider than the Sony but not so much that it would brand a big difference to how or what you lot shoot. You can meet the difference by toggling dorsum and along between the two images below.

Autofocus performance

To examination the autofocus of the two lenses, I used the Sony a6300. Information technology has a hybrid autofocus organization which comprises 425 phase detection AF (PDAF) points and 169 dissimilarity detection points.

There is very little to say against the autofocus mechanism of the Sony lens. Despite being a fairly onetime product, it is quick in adept light in both single AF and continuous AF, peculiarly when combined with the phase detection autofocus arrangement (PDAF) of the latest Sony bodies, and only slows down a piddling in poor light conditions or scenes with little dissimilarity.

The Sigma, on the other hand, is fast in S-AF mode just somewhat more sluggish in C-AF because the PDAF squares only piece of work at the very center in Wide, Zone or Expand Flexible Spot way. In any of the other modes and anywhere else across the frame, the lens relies on dissimilarity detection autofocus. That said, the 19mm is a wide angle lens, so you'll rarely need information technology for moving subjects anyway.

The AF mechanism of both lenses is very quiet, making them useful for stills and video work.

Transmission focusing

The fly-by-wire manual focusing feel of both lenses is fine but between the ii, nosotros tend to prefer the Sony's focus band because it has a ribbed design that's easier to take hold of onto.

The time it takes to travel from infinity to the minimum focus distance on the Sony depends on the speed at which you turn the ring: turning it chop-chop takes 1/4 of a plough whereas turning it slowly requires nearly 3/4 of a turn. The Sigma requires a 3/4 turn regardless of how fast or slow you turn the ring.

Conclusion

Unlike some other lenses I've compared, I find that overall the Sony 19mm and Sony 20mm provide a very like user experience, and so much that I'd sometimes even forgot that I was using one instead of the other. Yep, the Sony is physically a smaller lens to be sure, merely you don't actually perceive the added weight of the Sigma once it's attached to the camera trunk.

The merely real departure that could have an impact on your decision is the price. Equally of today, a make new re-create of the Sigma 19mm will set yous back approximately $170, which is a steal because that the Sony 20mm is effectually twice the cost. Cistron into this the fact that the Sigma is sharper than the Sony at f/2.8 and in the corners, and information technology before long becomes clear which is the meliorate deal.

The sole advantage the Sony retains over the Sigma is its compatibility with PDAF but since we are dealing with wide-bending lenses, there isn't much to be gained from having fast C-AF operation unless you lot need information technology for specific activity shots.

Choose the Sigma 19mm f/2.8 if you:

want to spend as piffling every bit possible on a wide-angle lens for your Sony APS-C camera
desire the best sharpness
don't care about phase detection AF

Choose the Sony 20mm f/2.8 if yous: