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Sigma 18-50mm f/2.8 DC DN : Specifications and Opinions

The Sigma 18-50mm f/2.8 DC DN is a standard lens for APS-C, manufactured from 2021. The focus is done by Stepper Motor, it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 525 €;

19 users have given it an average vote of 9.4 out of 10.

MOUNT

This lens is available with the following mounts:

Canon RF: this lens is compatible with mirrorless APS-C Canon RF.

Sony E: this lens is compatible with mirrorless APS-C Sony.

L-Mount: this lens is compatible with mirrorless APS-C L-Mount.

Fujifilm X-mount: this lens is compatible with mirrorless APS-C Fuji.

Specifications
Focal lenght	18-50 mm
Angle of view	76.3 - 31.6° (equivalent to a 27-75mm in Fullframe 24x36mm format)
Format	APS-C
Max. aperture	f/2.8
Aperture blades	7
Lenses/Groups	13 elements in 10 groups
Min. focus distance	0.12 meters
Reproduction ratio	0.35x
Features
Zoom type	Ring, external
Stabilization	No
Focus	Stepper Motor
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	55 mm
Lens hood	Yes, supplied
Weather sealing	Yes
Weight	290 g
Dimensions	65 x 74 mm
Buy
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Reviews

What do you think about this lens?

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The following opinions have been automatically translated with Google Translate.

Giampaolo Masserano

sent on October 02, 2025

Pros: Build quality, compactness, f2.8 from 18 to 50, sharpness.

Cons: All defects are corrected in-room

Opinion: The lens is very small but, weighing it, you realize that you are in front of a really well built object (miles away from the various 18-55 Canon that seem empty so light and plasticky ...). Properly sliding rings and patience if the diaphragm ring is missing, which I adjust with the wheel on the body. Ideal marriage with my Sony A6700: a mix of unparalleled quality and robustness, to put in my backpack on every mountain outing without having space problems. It is amazing that Sony itself does not produce a similar lens, forcing you to mount much more voluminous lenses (which nullify the compactness of the camera bodies) or throw yourself on the poor (according to many) E 16-50. Those who talk about aberrations, vignetting or distortion at 18mm may forget that nowadays all cameras are equipped with very effective corrective automatisms in the menu: so why complain? The same goes for the lack of stabilization: the one on the sensor is enough to get very sharp photos since the balance is excellent ... and 75mm equivalents I don't think create major vibration problems.

Giobanni

sent on April 04, 2025

Pros: Lightweight, compact, eye-catching, crisp satisfying

Cons: chromatic aberrations sometimes evident

Opinion: Kept for a few months but after finding that the chromatic aberrations, in some cases a little more extreme, jumped out at the eye (green and red on the blurred keys of the PC keyboard for example) I replaced it. I also got the cash back discount even if late to the 2 months declared but in the end I preferred the 28-60 of sony for my street. For 500 euros I expected more than a little more brightness which you are forced to give up using at least an f4 to avoid the defect

Nouhanda

sent on March 21, 2025

Pros: Very light and compact, smooth dials, image quality

Cons: Chromatic aberrations

Opinion: I analyzed at length whether to take the Fuji 16-55 mk1, the Fuji 16-50 or the Sigma. Embracing the philosophy of portability, I excluded the Fuji 16 55 mk1 for its weight and size, I don't consider the mk2 because it is too expensive, while I preferred it to the Fuji 16 50 because of the constant aperture. If you are also wondering which one to get, consider this: if you don't necessarily care about having Fuji lenses, if chromatic aberrations are a negligible defect and if you can tolerate the absence of the aperture ring, go easy on the Sigma. The portability is exceptional combined with the XS10 and the quality is more than good.

user207727

sent on October 23, 2024

Pros: Excellent lens (see features)

Cons: none (see features)

Opinion: That it's compact, lightweight, constant f2.8, tropicalized, no aperture ring and no stabilization can be seen from the lens specs, so these above can't be considered either pro or con. These are things that you know before you buy the lens. For the use I make of it, on Sony, I didn't have any surprises: the lens seems very good to me, it responds perfectly to the advanced AF of the 6700 and a little vignette, which for me is not a big problem but it is certainly noticeable. I don't express myself on sharpness because I am not able to evaluate it but it seems to me that it is ok, as well as on the rendering of colors which seems to me all in all neutral. A true all-rounder, compact, lightweight, f2.8, quality, at a fair price, which restores justice to the APSC system.

Wilier86

sent on October 16, 2024

Pros: Small size, f/2.8 throughout focal length, price, sharpness, portability

Cons: Non-premium materials, lack of aperture selector.

Opinion: Bought to complement the Fuji XT5. I was looking for an optic with constant f/2.8, in the end I was undecided between three, Fuji f.2.8, in Tamron and Fuji. In the end my choice fell on him for the sharpness factor, size and cost. The Tamron has a longer focal length but weighs twice as much and also in size it is much longer so I discarded it. The Sigma qualitatively has more valuable materials but it also weighs a lot and costs twice as much as the sigma and then Fufji announced the new II version which apparently decreases in size but should cost around 1600 euros (too expensive). Let's go to the Sigma, I recommend it to those who need a light optic, it is of excellent quality, it has a scary sharpness almost as much as the Fuji at half the weight, size and cost. it is an excellent lens to always carry with you, it fits in a pocket, really small, I still wonder how Sigma managed to make such an optical at constant f2.8 with these dimensions. the only negative drawback, the materials a bit plastic, but guys at this price and with this quality in such a small size you can accept, another factor that is missing is the aperture selector, but I don't see it as a very negative influential factor because you can select them with the wheel in the dedicated camera body, so nothing special. In conclusion, I highly recommend it for those who travel, or do street or reportage and need a constant focal length range from 18 to 50 2.8 with an excellent quality of sharpness rendering in very small dimensions and a ridiculous very light weight.

There are 7 more reviews. Show all »

Photos taken with Sigma 18-50mm f/2.8 DC DN

Urbino

by Magù
106 comments, 3206 views

HI RES 23.9 MP

Val di Fumo

by Ruggio
23 comments, 6229 views

HI RES 24.0 MP

Pieve di Santa Giuliana, Vigo di Fassa

by 26switar
26 comments, 4095 views

HI RES 18.8 MP

See the world from up there!

by Magù
78 comments, 721 views

HI RES 3.8 MP

Evening Veiling

by Magù
82 comments, 1576 views

HI RES 3.8 MP

Stephanie

by Emilio94
9 comments, 5389 views

HI RES 25.6 MP

Joyce

by Emilio94
6 comments, 4573 views

HI RES 25.6 MP

Corsair beer!

by Magù
52 comments, 1656 views

HI RES 4.6 MP

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Cuney Shrine

by Magù
58 comments, 1704 views

HI RES 3.8 MP

Points of light

by Zonca Michael
20 comments, 833 views

HI RES 21.3 MP

Great St. Bernard Pass

by Magù
35 comments, 712 views

HI RES 3.8 MP

Unforgettable views

by Magù
45 comments, 868 views

HI RES 3.8 MP

Between markets and Pirates

by Magù
37 comments, 911 views

HI RES 3.8 MP

Reflecting yourself in the rocks

by Magù
37 comments, 645 views

HI RES 3.8 MP

Finally the bivouac

by Magù
29 comments, 489 views

HI RES 3.8 MP

Val di Fumo

by Ruggio
5 comments, 2010 views

HI RES 25.6 MP

Details of the forest

by Zonca Michael
11 comments, 643 views

HI RES 3.8 MP

Je me suis perdu.....

by Magù
34 comments, 587 views

HI RES 3.8 MP

Valentina

by Emilio94
9 comments, 3903 views

HI RES 25.6 MP

Autumn

by Zonca Michael
8 comments, 618 views

HI RES 3.8 MP

Under the legs

by Liuk79
23 comments, 1716 views

HI RES 21.5 MP

Touring Bremen 2

by Magù
13 comments, 913 views

HI RES 4.3 MP

Riposto (Italy)

by Puglisi2
0 comments, 3125 views

HI RES 26.5 MP

Sunset from the ship

by Liuk79
19 comments, 251 views

HI RES 25.4 MP

Edelweiss

by Magù
22 comments, 371 views

HI RES 3.8 MP

Urban - Milan

by Liuk79
8 comments, 1533 views

HI RES 25.8 MP

Gran Sasso, Franchetti refuge

by Ruggio
10 comments, 1554 views

HI RES 22.6 MP

Overview of the lakes

by Magù
25 comments, 473 views

HI RES 2.5 MP

St. Bernard shows the way

by Magù
28 comments, 421 views

HI RES 8.6 MP

Street - Milan

by Liuk79
3 comments, 1302 views

HI RES 9.5 MP

Autumn sunset

by Giampaolo Masserano
11 comments, 136 views

HI RES 9.0 MP

IN A PURPLE SEA

by Max45
5 comments, 2989 views

HI RES 13.0 MP

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CASTLE OF PROH (NOVARA)

by Roberto1985
4 comments, 3113 views

HI RES 18.6 MP

Street - Milan

by Liuk79
0 comments, 1616 views

HI RES 25.8 MP

Street - Milan

by Liuk79
11 comments, 1090 views

HI RES 25.1 MP

Stone cairn

by Magù
29 comments, 628 views

HI RES 3.8 MP

Street - Milan

by Liuk79
10 comments, 1908 views

HI RES 23.5 MP

The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Reviews » Lenses » Lenses Sigma » Sigma 18-50mm f/2.8 DC DN

Sigma 18-50mm f/2.8 DC DN : Specifications and Opinions

Buy

Offerte Usato RCE

Reviews

What do you think about this lens?

Photos taken with Sigma 18-50mm f/2.8 DC DN