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

Reviews

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The following opinions have been automatically translated with Google Translate.

Giampaolo Masserano

sent on 02 Ottobre 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 04 Aprile 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 21 Marzo 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 23 Ottobre 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 16 Ottobre 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.

Roberto Nalini

sent on 01 Agosto 2024

Pros: Sharp, light, tropicalized, excellent construction.

Cons: Lack of stabilization.

Opinion: I took it yesterday and took several test photos and I confirm the excellent performance. Much sharper than the canon 18:150 with the same focal length of course. Very beautiful colors, excellent rendering of the complexion. Too bad there is no stabilization, but on the R7 the lack is felt less given the stabilization of the sensor. Brava sigma, finally an Aps-c lens worthy of Canon. Now we are waiting for the others announced and above all a stabilized 50-100 zoom at least compact like these. Lately I prefer portability and lightness over everything else, so much so that the full kit is increasingly at home. At the time of reflex cameras, apsc was far below full, but now you have to draw your eyes already by zooming in to 100% with lenses of this level, especially on prints. And if you get manias, let you carry the weight of the backpack.

Massimo61

sent on 03 Giugno 2024

Pros: Constant F2.8. Sharpness. Lightness.

Cons: Not stabilized. For some, the lack of an aperture ring (but I saw that you can photograph the same... :-) !)

Opinion: I have the X-mount version and I use it on the XT5 to have a light combination to use when you want to contain weights and dimensions. On the XT5 with its stabilized sensor, it works well and seems to be able to take advantage of the loved/hated 40 mpx. I am not an expert technician/engineer/optician like many here, mine is consequently an empirical and personal opinion and I can say that the performance of the lens is excellent and the photos I take are lacking exclusively because of my inexperience. I recommend it to those who want lightness and quality.

VeronicaPinna

sent on 27 Agosto 2023

Pros: Lightweight, tropicalized, IQ, silent on the video side

Cons: No diaphragm ring

Opinion: I bought this lens a few months ago and use it mounted on a Fujifilm X-S10. I liked it right away for lightness, image quality that is quite discreet, total absence of chromatic aberrations (problem that I found in the past with lenses much more expensive than this but for Sony mirrorless). As far as vignetting is concerned, there is little visible, almost absent. Also on the video side the quality is very good and the zoom does not create any annoyance or noise. Overall certainly you can not compare it to professional lenses but for what I do, street, some portraits and a bit of nature is more than fine.

0rs0

sent on 10 Giugno 2023

Pros: Compact, lightweight, all-rounder, maf distance, speed

Cons: Vignetting, vignetting, vignetting, vignetting, for some the zoom dial on the contrary can be a problem.

Opinion: For what this toy costs they have made a half miracle. It depends on what you expect. Excellent usability, perfect for travel, reportage and much more. I used it on a whim even in a wedding in the most relaxed moments and it did not behave badly. Distortion in the norm to be a gem that is in the hand of a child, the sharpness I consider more than enough, it depends on what you use it for, however even in the portrait, between 40 and 50 mm it is not bad even at full aperture. The real problem is the vignetting between 18 and 24mm, horrendous and incorrigible. Practically a ring, an obscene stuff, never seen before. When you frame clear skies or scenes it is very evident. It disappears after f4. Clear that if you expect the performances of a 24-70 f2.8 for full frame we are quite far away. Overall he gets away with it.

Sigmarco

sent on 19 Febbraio 2023

Pros: Focus, openness, construction, size and IQ.

Cons: Rings a bit strange, I explain below.

Opinion: Excellent optics, it has everything you need. At € 500 we find a good focal range (27-75), constant aperture at F2.8, a more than good construction with even a minimum of weather resistance, all in a very small body. Finally, the image quality is all there in spite of what you hear around. The only cons are the rings: The zoom ring that turns backwards compared to the one found between most lenses, a bit unnatural but you get used to it and the focus ring put where one could imagine the aperture ring. You get used to it too, but in short, if it had been customizable... In general, however, an excellent optics. A must for those who love/need the genre.

Ruggio

sent on 16 Agosto 2022

Pros: Size, weight, sharpness up to 3/4, value for money

Cons: Distortion, a bit of aberrations in strong light conditions

Opinion: Balanced optics in performance and price. It prefers compactness and lightness without losing sharpness but compromising on other optical characteristics. First of all the distortion always marked at every focal length. Aberrations are present in strong, reflective light conditions. Weight and size make it an excellent travel companion especially on compact bodies such as the A6XXX series. The stabilizer is missing but it is not a con since you buy knowing it. The blurry is pleasant. Essential construction but of good workmanship. In conclusion, a lens capable of giving good shots.