Sony 24-70mm f2.8 vs. Sigma 24-70mm f2.8

Which e-mount zoom is best?

The Setup

I took out my trusty Sony 24-70mm f2.8 GM lens and compared it with the Sigma 24-70mm f2.8 Art lens and was surprised by the results.

Sharpness is close

Weight: 29.5 oz Sigma vs 31.6 oz Sony.

Minimal focal distance is better on Sigma.

Auto Color does better with Sony.

That price, doh: $1099 Sigma vs $2198 Sony 😳

What I Figured Out

Autofocus is better on Sony.

Zoom rings run opposite directions. Weird.

Here are some video samples shot on the Sony A7S3 on Auto settings in 4K/24.

More samples shot on the A7S3 on Auto in 4K/24. Here you start to notice the shorter minimal focal distance on the Sigma.

Here's a wider sample shot on the Sony A7S3 in 4K/24.

Here's a 70mm sample shot on the Sony A7S3 in 4K/24.

This is as close as the Sigma can get to the cup, while the Sony is at the same distance. 

Just to illustrate how much closer to a subject the Sigma can focus compared to the Sony.

Samples from Sigma (above) vs Sony (below)

Samples from Sigma (above) vs Sony (below)

Here I put the focal distance as low as I could and in the Sigma (to the left) vs the same distance on the Sony (bottom left) to illustrate how much closer you can get with the Sigma vs Sony. The last image (bottom right) is how far back I had to go to get the same flower in focus on the Sony.

Bottom Line

Ok, so after testing which would I choose? Honestly, the shorter focal distance is a huge help to me over the Sony. Add to that a similar image quality (maybe a hair less) and the fact that you can buy two Sigma lenses for the cost of one Sony. I ended up putting my Sony on eBay and grabbed the Sigma is now my go to.