Astounding Sony A7s side by side ISO Shootout with the Canon EOS 5D Mark III

by planetMitch12 Comments

We just got this from Den Lennie and I hope you're sitting down as this will absolutely astound you and you won't believe your eyes – the Sony A7s high ISO performance compared side by side with the Canon EOS 5D Mark III is simply jaw dropping!

Den just posted this so it is HOT off the press!

Den let me see this while we were at NAB while I was waiting to go on the live show, and I couldn't believe it then, and even now, it just astounds me.

This is really just that amazing!

I cannot wait to get my hands on the Sony A7s

Pre-order the Sony A7s
B&H | Amazon | Adorama

By the way, you'll be able to record 4k to an external recorder like the Atomos Shogun.

Sony A7s vs Canon 5D Mark III side by side low light test

What did you think?

Ok, now that you've picked yourself up from the floor, tell me what you think? Sound off in the comments below

The first question might be… were they shot with the same lenses?

Den said:

both lenses were Zeiss ZEF 25mm

so that answers that!

Youtube description:

When I was in Las Vegas at NAB earlier this year I set up this side by side on the balcony of my hotel overlooking the Bellagio fountains. Here are the results: Both cameras were set up on same ISO and shutter speed. Both with std camera profiles. Lenses were matched Zeiss ZF.2 25mm and we used the highest recording bit rates on both cams. ALL-I on Canon and XAVCs on Sony.

HDSLRshooter Sony A7s coverage from cinegear

Here's an extra tidbit for you to watch from

(cover photo credit: snap from the video)


  1. Yeah but the A7s couldn’t even pick up the fountains at 409K ISO.

  2. 3thanAlexander not sure what you mean… are you thinking the fountains show on the 5D3 and not on the A7s, if so I think maybe the fountain just wasn’t doing a ‘show’ when he recorded with the A7s

  3. the dinamic range in the A7s is so big, so big, even when you think is absolutely blou up and cliped is not, in post you can low donw all the bright areas and find details in there, I just run a test in ISO 409000 and can save much information from burned areas; the A7s is a winner

  4. planetMitch 3thanAlexander Just taking a rip at an impressively sensitive camera

  5. Pingback: Sony's A7s Takes on Canon's 5D Mark III in Side-by-Side Low-Light Test

  6. Is the 5D out of focus? No reason it should be so soft.  Also, standard picture profile on Canon is terrible.  Not sure about Sony’s standard profile but definitely hurts the Canon’s dynamic range.  All that being said, the A7 looks impressive.

  7. Pingback: El A7s de Sony adquiere la marca III del 5D de Canon en prueba de lado a lado de baja luz | Noticias Del Mundo

  8. I am wondering what the point of such a comparison is. The 5D Mark lll was released in the spring of 2012. The  A7  is an infant by comparison. How therefore can you compare the two on a like for like basis? The camera as a tool is completed by the range of lenses and accessories that accompany it along with the network of support provided by the manufacturer. On that count, there surely is no comparison. While I may sound like an unashamed  5D 3 fan it begs the question that this is not a comparison of equals on the basis of their respective timeline.

  9. Weenson the point is clear for me; 5D Mark III is one of the best low light DSLR in the market, you can work with Hi ISO and less noise than many of the other brands in the market, but now is a new player in the field the A7s; so is fair to compare each other; like in my case, I don’t have any of them but I need a very good low light camera for my work and I must buy one for September’s works; so now I have more options; 3 month ago only 5DMK III can handdle the low light as I need, but now I can choose, test and decide; that’s why is a very good side by side camera comparision.

  10. Looks like the clear choice for shooting in near total darkness. I could see this becoming a valuable tool for journalists, industrial film makers, PI’s and documentations.

  11. Pingback: Sony €™s A7s Takes on Canon €™s 5D Mark III in Side-by-Side Low-Light Test | News 12

  12. The 5D3 footage is mysteriously soft. I own the 5D3 and my video isn’t that soft. I know the 5D3 is soft out of camera (sharpens beautiful in post) but not THAT soft.
    Well and then there is the whole Magic Lantern discussion…
    That being said, the Sony is a low light BEAST.

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