Diversifying your video communication, avoiding audience fatigue, renewing yourself... slow motion (slomo) can contribute to this. And using your smartphone in slow motion has become effortless. Some basics on the subject.
Slow Motion... right now!
Some smartphone built-in cameras (Apple, LG, Samsung, Sony...) allow to film in slomo. We then use the video created as any video. The operation took me 10 minutes: download the video, keep less than 20 seconds (always keep it as short as possible for social networks), add a logo, export everything, publish it on social networks.
You just have to think about the sound. In my example, I wanted to keep the sound of the ice cubes. Some camcorders mute the sound in slow motion, so you need to add music or voice.
It looks very simple but it was not until the 90s that we were able, for the first time, to store slomo images in a large hard disk. The French pay-TV channel Canal+ had allied with a young Belgian company, EVS.
The many applications of slomo
Humor and slow motion go well together! And without going so far as to put delirious means of production like in this film, one can easily produce humorous content in slow motion. Please send me your films!
Slomo to the expense of light
Some consumer devices capture 300 fps (instead of the typical 25 or 30 fps). A first limitation: light. As the camera sensor must capture more image, each image receives less light. So we lose sensitivity. On my scene shot indoors, the scene is dark despite the extra lighting of the camera (the flash). Better to use it outdoors!
Among professionals (especially for sport), the problem remains the same. Very high speed cameras lacked sensitivity to be used at night... On the above video (jump directly to 7 min 22), the image is dark even during the day (the author wanted to bring out the flame certainly).
Keep the subject in the center of the image
Professionals use turrets (like in the army!) to rotate the camera. The reason? Keep the subject in the center of the image. It's incredibly difficult when you film someone in motion. Go ahead, try it. And yet it's when you're close that slomo is most impressive.
On the video above, the conditions at the German Bundesliga stadium were not the best. We're better off in front of the screen, my dad would say.
Conclusion: good result during the day, not so good at night
Another regular weakness: "flicker". That's flicker you see on the cocktail bar video. Neon, halogen and equivalent lamps are particularly not recommended. Another solution: remove it later as explained on this video (jump directly to 1 min 00) with the SeedDeFlicker app for example.
So you can easily shoot in slomo with good results during daytime.
For night scenes, it's best to wait until the next morning. That gives you time to test new cocktails, doesn't it?