S&Q Mode vs 60p vs 120p | A7siii Slow Motion Deep Dive

The Sony a7siii can film 4k 60p and 4k 120p in both a "normal" mode and an S&Q mode. In this video I look at whether there is a noticeable difference in image quality between the two.

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[narikaluorin]

thank you so much for this video, i have been using a7siii for 3 years but it surprise me how detail you could go (fun) .... this video is awesome, i will definitely go try out my self. Thank you once again. love from Nepal

[badger-productions]

5:13 I swear the pouring Waterloo's sharper, but maybe that's just me. Great video

[JeffreyJDavis]

Useful vid, Thanks for answering a specific question I had before shooting some B-roll later today and I would suggest that absolutely no one is pixel peeping video shadow noise as deeply as you have.

[Quarker]

Thanks, it's interesting to know that there's a file size and compression difference between the standard and S&Q recording modes. I wonder if this test could be re-done in a scene with much more movement e.g. confetti or falling leaves where the compression might be more obvious and S&Q could be worth it.

[princetvheaven]

Excellent and informative video. Thank you. I'm new to filming (Sony) real estate here in the UK, so I was wondering S&Q mode was the way to go. It also means that I can instantly replay the clips in slo-motion instead of watching in real-time and trying to work out if the shot is useable.

[Rinzing]

Hi Riley, thanks for clarifying S&Q,

[Jambo]

I was not happy that Sony abandoned the Slow-Motion buffer trigger available on my 10yo Sony camcorder. With a buffer, when you press the shutter, it only saves the last x seconds of slo-motion, saving a lot of disc space. Also a buffer allows you to wait, a long time if needed, for some action to happen.

[wadefrench]

Nice pour over and great video Riley :)

[pastoringrealestate]

Amazing. 🎉 thank you for doing this. I was just wondering with my a7siii which I am so happy with

[cypke]

I was wondering because S&Q mode requires V90 SD card, but non-S&Q mode only requires V60
Also XAVC S-I needs a V90 SD card.
But it seems like I won't need either. Thanks for this video :P

[jack.pearce]

Thanks for this. Was wondering myself - glad someone did the test!

[boutthere]

Thanks for this because I was wondering myself.

[AI-FOR-FILMMAKERS]

Hey Riley. My friend and I did actually discus this topics yesterday, so nice timing for your video. In Europe the numbers are: 25p = 140mbps, 50p = 200mbps and 100p = 280mbps. But the interesting thing is, once you change the codec to XAVC S-I 4K. Then the mbps doubles: 25p = 250mbps, and 50p = 500mbps. Of Course 100p is only available in XAVC S 4K.

[bjoerohe]

Thanks for this video. I never use S&Q mode because it is practical for me as a wildlife filmmaker to film in 120 fps and slow down in post, and keep the sound. I have wondered if the S&Q mode was very much better? You gave me the answer. Not enough to use it. Thanks again :-)).

[Ollevisuals]

Interesting topic, Riley! I think the S&Q mode can be confusing. Wish they had that menu sorted out better about frame rates and stuff..

[JustinSpencers]

Thanks for this I was just about to do a similar test. I shoot surfing and I've found that S&Q XAVC S-I 4K gives me the best quality image for slo motion footage. I think XAVC S-I comes into its own when there's lots of movement. File sizes are huge and you need a CF Express card but the footage is a lot quicker to edit. However... I've recently noticed that autofocus doesn't seem to be as reliable when using S&Q mode. Has anyone else has noticed this?

[BenjaminAdamsVu]

Great comparison, TFS, I learned new things today from this, I'll try S&Q next time out for sure vice 4k12. I'm all for less time at the computer LOL

[WildWheel-Adventure]

1. More bitrate = more sharper = larger fil size,
2. explain also why lest data in higher frame rate ?
3. Higher frame rate higher data right ?

4. Less bit rate more noise, higher bit rate less noise

[vi-dor]

Thanks for great comparison 🙌
I wanted to know if there is a different when you’re using the PP at S&Q and at the normal video mode?!

[XX]

I wasn't impressed with my trials of S&Q in camera. Thanks for your work.