18-50mm F2.8 DC DN Contemporary (for E Mount)

I'm a photographer that shoot most of my stuff while hiking and travelling. Size, Performance and versatility are my three biggest factors. Usually, I have to compromise pretty heavily between them. Last year I hiked in Zion for a week with the Sony 16F2.8, Which was amazing for keeping the weight down on long high-mileage days, and virtually disappeared on the camera. This was in exchange for meh results and a lot of lens flare and aberration. This year I decided to suck up the size, and took a Sigma 16F1.4. The weight was reasonable, and the pictures were amazing, but the lens itself was a chonk and it was frequently in the way. Both of these lenses also lacked versatility, resulting in a lot of shots where I shot wide and sucked it up for a heavy crop in post.Enter the Sigma 18-50f2.8. Pictures are sharp as a tack, check. Common 55mm Filter size, check. Small package, check. Reasonable weight, functional zoom range, decently wide aperture etc. It frankly does it all, and does it without being fat, heavy, obtrusive or expensive. Is it my favorite lens? No. It's frankly, just a little boring. It doesn't have a niche. It is however ASTOUNDINGLY capable. It's great to watch a player who shoots from half court, has handles like a Globetrotter or will dunk over 3 defenders, but this lens is the guy on the team who is a solid 9/10 in every fundamental and plays everything textbook. It's not a "fun" lens, but it will absolutely get the job done capably in every situation, in a smaller package and half the price of it's competitors.The minor gripes: The focus/zoom rings are annoying. They're flush with the barrel and I frequently have trouble finding the right one by instinct. They're smooth, but not intuitive to find. The lens hood when stowed also gets in the way of the rings. There is also no image stabilization. As a photographer, this doesn't bother me a bit. If you're a videographer, this will probably be a big problem if you don't have in-body image stabilization or a gimbal.

I'm a big fan of Sigma prime lenses such as the 16 mm, 30 mm, and 56 mm. I also greatly enjoy the Sony 50 mm and my go-to favorite is the Sony 35 mm OSS. This Sigma 18 to 50 mm is nearly as sharp as the Sony 35 mm OSS. Very versatile as a walk around town lens without protruding too far away from the camera and without adding unnecessary weight. It's an incredible value (a steal) at this price.

Excellent lens very handy in a small body line the a6400

I love this lens. I produces super sharp images for my videos. I use it on a Sony a6600, it's great in low light, zooms well, it's light, and easy to balance on a gimbal.

Very versatile, light weight, easy to use. No issues.

The Sigma 18-50mm zoom lens is one of the most versatile, sharpest and affordable APSC lens you can buy. It is extremely light, suitable for gimbal video work and run and gun photography. The 18-50mm focal length is approximately a 27mm-75mm full-frame equivalent. This is a good range for architecture and landscape photography as well as portraits. While the lens doesn't have lens stabilization, if you have a camera with built-in IBIS like the A6600, A6700, FX30 you will be fine. The F2.8 aperture also gives you decent subject separation and good low light performance. I have the Sigma Trio prime lens but wanted a "one and done" lens that I can leave on my camera when traveling and get all of the different focal lengths.

This lens is perfect for beginners. It covers 90% of your needs. Photos are great. Blur and bokeh are not perfect but for this price is good.

As an owner of both the Sigma 30mm f/1.4 and 56mm f/1.4, I got this zoom lens with the intention of using it for travel photography, mostly due to the small size and great quality; but I can now say that it will pretty much be my default lens for most situations.It’s a great upgrade for anyone using the default sony kit lens, with the only caveat being the lack of stabilization. And while not necessarily an upgrade compared to my other sigma lenses in terms of image quality, it definitely is when it comes to practicality. At a constant f/2.8 aperture, the amount of light this little lens can capture is amazing.This will be the lens I keep attached to my camera by default. I still love my f/1.4’s, but unless I am on a low light situation or aiming for the most bokeh I can get, I rather use this amazing lens to gain the flexibility of the 18-50mm focal lengths without having to swap primes all the time.