Sigma 24-70mm f/2.8 DG OS HSM Art
Practical Use of Field Curvature: 24-70mm Zooms
We’ve done a pretty good introduction to the field curvatures of 24mm, 35mm, 50mm, and 85mm prime lenses. We made a little bit of comparison with bargain primes and zoom lenses at 35mm. This post is going to assume you are familiar with those previous posts. (Yes, I know the reality is most people…
Stopping Down Some Bargain Primes and Zooms
In my last post, we looked at how the field curvature of some really excellent 35mm f/1.4 primes affected what happens when we stop down the lens. The takeaway message is that as you stop down, things change a bit differently with the different lenses, but by f/5.6 they were similar. Still slightly…
MTF Tests for the Sigma 14-24mm f2.8 Art Series Lens
Most of you know I’m a big fan of Sigma’s Art prime lenses. They give superior optics at excellent prices just about every damn time. I’ve been more mixed in my opinions of Sigma’s Art zoom lenses. I thought the Sigma 24-105mm f/4 Art was the best 24-105mm I’ve ever tested (and I hate testing…
Lensrentals.com Review the New Sigma 24-70mm f/2.8 DG OS HSM Art Series Lens
I feel like I’ve written this a thousand times at this point, but credit is deserved where credit is due. There is no lens manufacturer in the world who has done a better job than Sigma Lenses at rebranding their image from a lowly third party manufacturer to a staple in the lens market. With their…
Sigma 24-70mm f/2.8 DG OS HSM Art Sharpness Tests
Sigma has been on an incredible run these last 5 years, releasing one amazingly sharp lens after another. They’ve made lenses no one has ever tried before and not only succeeded, they made them amazingly good on the first try. Their quality control has become as good as anyone’s, better than most.…