Ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture, and events, the 18-50mm f/2.8 DC DN Contemporary Lens from Sigma is a small, light, and bright standard zoom for crop-sensor mirrorless cameras. Offered here with a Sony E-mount, this lens provides a versatile full-frame equivalent zoom range of 27-75mm and a wide constant aperture of f/2.8 throughout the entire zoom range. The lens design includes three high-precision glass-molded aspherical elements coupled with a special low dispersion element. Together they minimize the total number of elements for superb optical quality without excessive weight. Autofocus is exceptionally fast and quiet thanks to the lens's stepping motor, which can be particularly useful when shooting video or fast-moving subjects such as children and animals. An ultimate workhorse, the lens features a minimum focusing distance of just 4.8", enabling it to be used for macro-style close-up photography, and the lens is also outfitted with a rounded seven-blade diaphragm for a pleasing bokeh quality.
- E-Mount Lens/APS-C Format
- 27-75mm (35mm Equivalent)
- Aperture Range: f/2.8 to f/22
- Minimum Focusing Distance: 4.8"
Sigma 18-50mm f/2.8 DC DN Contemporary Overview
Sigma 18-50mm f/2.8 DC DN Contemporary Specs
|Focal Length||18 to 50mm (35mm Equivalent Focal Length: 27 to 75mm)|
|Lens Mount||Sony E|
|Lens Format Coverage||APS-C|
|Angle of View||76.5° to 31.7°|
|Minimum Focus Distance||4.8" / 12.1 cm|
|Macro Reproduction Ratio||1:2.8|
|Optical Design||13 Elements in 10 Groups|
|Diaphragm Blades||7, Rounded|
|Filter Size||55 mm (Front)|
|Dimensions (ø x L)||2.5 x 2.9" / 64.5 x 74.5 mm|
|Weight||10.2 oz / 290 g|
|Package Weight||1.01 lb|
|Box Dimensions (LxWxH)||5.5 x 4.3 x 4.1"|
Sigma 18-50mm f/2.8 DC DN Contemporary Reviews
Right out of the box, this lens delivered. Took it for a test run on my Sony a6500 and was amazed with the results. Tack sharp, beautiful bokeh. Viewed several Photog YouTubes who raved about it and decided to make the purchase. Love to have the Sony line of lenses, but at this price point, I'm good with Sigma.
Having joined the E-mount APSC ecosystem I've been waiting for years for any company to make a compact relatively affordable standard zoom lens. Been rocking the a6xxx line since I started photography and never saw the point of having a convenient compact camera with an oversized lens attached to it (seems to defeat the purpose). I dont print or do professional work and all my images are viewed on screens of various platforms so the sony 16-50 kit lens and collection of sharper primes has served me well. Now comes sigma with a compact, sharp, f 2.8 lens. The image quality is great and even with APSC sensor you can still crop a good amount with good image quality. F2.8 is also good enough to have great bokeh in your images. Most importantly its reasonably sized for the a6xxx cameras. The only negatives would be the fact that it does not have stabilization and there is occasional chromatic aberration depending on angle/light. But for the price and size those are reasonable compromises. So if you're in market for appropriate sized lens for APSC camera thats sharp in the standard zoom lens definitely recommend!
Surprisingly compact lens with excellent image quality
My first impression of this lens in a store was that it was too small and didn't feel like a serious lens. I still put it on my a6600 and took a few shots and then compared it to the Sony 16-55 which felt more substantial with a price to match. When I looked at the raw files at home I noticed that there wasn't really a resolution difference and the Sony files had heavy distortion and vignetting before a profile was applied. I decided to get the Sigma knowing I could resell it if needed. Well, I tested it against my old Sigma 17-50mm f2.8 (EOS) which was my main zoom and then also the excellent Sony 55mm 1.8 and Sony Zeiss 24mm 1.8. Moving away from the retrofocal design for DSLRs meant there was no optical compromise- on the wide end the Sigma is far more detailed with sharper corners and less haze and aberration than the older Sigma had despite a huge decrease in size and weight. Even stopped down the new lens is a winner. At longer focal lengths they are similar. Much less coma for point light sources at night as well even wide open. The Sigma wasn't quite the equal to the primes wide open but very close stopped down which is more than acceptable for an all-purpose lens given the price and size. Are there downsides? Yes. I find it initially misfocuses some of the time which is a problem if you aren't paying attention (shooting from the hip, etc.). Give it a second to acquire focus and it will be fine. None of my other lenses exhibit this oddity. Tracking autofocus with the a6600 works very well as does burst autofocus and video autofocus. Also, the filter size is small so you'll save money on polarizers or ND filters. Sigma really nailed this lens design and didn't have to sacrifice optical quality like Sony did with the horrible 16-50 kit lens.
This lens is fast, sharp, light weight & compact! The focus is fast and quiet and pin sharp throughout the focal range. Distortion is present at both wide and tele range but easily correctable in raw by Lightroom software or by utilizing in camera corrections in jpeg. Colors are true and warm and flare is well controlled! Only minor nitpick is the lens could have been a little wider, say to 16mm. I have another wide angle zoom to cover that. Great price for the features and great for general, landscape, travel, event & portraits. Thanks B&H for super fast shipping!
Light, fast & sharp!
When my 16-70 f/4 Sony lens needed repair it was actually a wake up call. All the reviews are true. The lens is small and light and easy to handhold! Even wide open the center is tack sharp and the corners good! Stopped down to f/5.6 the entire image is sharp. Distortion at both ends is visible but correctable in camera for jpegs or in raw via Lightroom lens profiles. Focus is quick and accurate and the bokeh is nice and smooth. The Sigma colors are warm and realistic. This lens is perfect for general photography, landscape, portraits, event and travel. This lens complements my 10-18 f/4 Sony; 60 f/2.8 Sigma; and 70-200 f/4 Sony. Great job Sigma!!
Great range for cheap
I previously only owned the Sigma 16mm 1.4 prime lens and loved it.. I bought this because I needed something else to take portrait pictures with as well as pictures of my keyboards and desk setups and it has worked great! I've also taken some really nice shots of our recently adopted dog :) I'll be bringing this thing with me EVERYWHERE!
Sharp compact zoom
I have found this lens to be superior to the kit lenses usually sold in camera packages. The constant 2.8 aperture makes for excellent indoor and outdoor usage. Zooming in on images on my computer screen reveals sharp details in images corner to corner. Would highly recommend.
This is basically the APS-C equivalent of the 24-70mm 2.8, virtually a legendary workhorse for any photographer. I shoot stills and video on an a6500. My most basic requirements for my kit for decades (going back to when I only shot film) has been a zoom with a wide range and also a fast normal lens. Maybe add a dedicated portrait lens and an ultra wide. I have the Sony 18-135mm, and Sigma's trio which is just such a well planned set of primes (except for the varying filter threads!!), plus a Samyang 12mm. I rented Tamron's 17-70mm and it's fantastic, but for my work, it was just bigger and heavier than what I wanted. This Sigma fits the bill perfect for splitting the difference between my fast primes and my convenient super zoom. I loose some speed and some reach, but gain loads of convenience while retaining the amazingly small size. This zoom may be redundant in a few ways, but still the best of both worlds when I want/need it. Full frame guys (I shoot that too) may complain about slightly deeper depth of field and minor lowlight differences of the sensor, but this lens with a fitting camera is very close to a frame professional 24-70mm set-up at a fraction of the size. As for the extra 20mm you gain from the Tamron, I'm okay with a small crop if I need it and I can live with the 1mm less on the wide end. I would have loved the stabilization, but at least I have IBIS, even if not quite as good. I hope this review helps a few people looking at the same decisions as me as I was sizing up the 17-70, Sigma's trio, and this lens (the Sony 16-55 is just too rich for my blood).
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