Hello everyone,

I've had my mini 2 for 1 week now and i've noticed a lot of "grain" or noise especially on grass in my videos.

I've linked 3 videos i've take last saturday around 16:00PM

Camera Settings :
-ISO 100
-Shutter Speed 1/600 or 1/800
-White balance 5500K

I would like to have your opinions, if i have problem about my camera or if the problem is from me ( move too fast, bad positioning relative to the sun etc ...)
https://drive.google.com/drive/folders/1ZSMK4z_aMqLZJIg3TjEEJZMSfXv6cfSf?usp=sharing

Thank you very much

Hi XenOn63,

Is that the lores video from your smart phone or did you take the recordings from the SD card from the drone?
Max resolution I can play is 1080p.

JohnDG Posted at 12-4 03:54
Hi XenOn63,

Is that the lores video from your smart phone or did you take the recordings from the SD card from the drone?

Hello JohnDG,

The recordings are from my SD card, i think its drive who compress them in 1080p

if you download them, you will have the 4k record

That looks better. I think, because of the details in the grass and you pan quite fast, you get that grainy effect. In the first video, I watched there was a flare from the low sun, but I don't think that is the reason. Try panning a bit slower. Maybe put it on the controller in "cine" mode when you record those scenes.

What profile were you using?

Try getting your shutter speed down and slow the pans

Definitely get your shutter speed down, ideally you want a shutter speed twice as fast as your fps, so a 30fps would need a 1/60

Heres a detailed explanation why - https://wistia.com/learn/production/what-is-shutter-speed

DAFlys Posted at 12-4 06:05
Heres a detailed explanation why - https://wistia.com/learn/production/what-is-shutter-speed

Great link.

Through The Lens Posted at 12-4 06:07
Great link.

thanks Through The Lens.  

DAFlys Posted at 12-4 06:08
thanks Through The Lens.

Thanks for sharing!

Put it in Auto and 1080P and all will be good.

Unless of course you like massive data sized files that cannot be shared and when they are shared most platforms send them out at 1080P anyway

Hi, XenOn63. Sorry to read about your difficulties. As already been suggested, it would be ideal that you set everything first to Auto and check whether the same issue can be replicated. If that resolves it, adjusting your Shutter Speed first is ideal. Please keep us updated.

Hi, any solution? I think i have the same problem.

capego Posted at 2-24 05:37
Hi, any solution? I think i have the same problem.

The solution has been mentioned here multiple times already: Slow that shutterspeed down and also slowdown your movements. ND filters for the shutter, movement is an experience thing, but generaly speaking: how bigger the distance between the drone and the subjects the faster you can fly (can, but many people fly to fast)

I have the same problem, artifacts during even very slow pans in cine mode, noisy, looks like sandpaper. By the way, when viewing YouTube videos at 4k, even on a 1080 monitor, you'll see a difference. 1080 will soften the artifacts which stand out in 4k viewing.

DAFlys Posted at 2020-12-4 06:04
Definitely get your shutter speed down, ideally you want a shutter speed twice as fast as your fps, so a 30fps would need a 1/60

That does help with 4k on my Panasonic G9, haven't adjusted it on the Mini 2 yet, will do today. Thanks for the reminder.

Funny thing I tried this.

Went from 30 fps 4k to 60 fps in 2.7k and it looks much better.

just something to try, I wish dji had 60 fps in 4k.

Phooey Posted at 3-13 07:37
That does help with 4k on my Panasonic G9, haven't adjusted it on the Mini 2 yet, will do today. Thanks for the reminder.

I'd forgotten most of these small cameras have fixed apertures, so your only option for getting the shutter speed down to recommended levels is using an ND filter, a tiny ND filter, something I wouldn't chance trying to attach to the camera. However, an ND filter or gel can be taped to the drone body in front of the camera. A gel may not be optically suitable since they tend to distort. I was only able to get my shutter speed down to 1/200 on a cloudy day, ISO 100 f2.8. I tried 1080 and 4k and still have ugly artifacts during even the slowest pan, tilt or rotate which significantly degrades video quality.. I also notice there's a slight noise overlay throughout the video even when sitting still, something that shouldn't be there, particularly at 100 ISO.

DAFlys Posted at 2020-12-4 06:05
Heres a detailed explanation why - https://wistia.com/learn/production/what-is-shutter-speed

Interesting read, thanks!

What mode is the drone it? I know if in the sport setting lots of video gets distorted

Armando80 Posted at 3-13 11:56
Interesting read, thanks!

You're very welcome.

Interesting that ND filters are apparently being propagated as a panacea ... If the video jerks during pans at 30FPS, the pans are simply too fast! An ND filter can only lengthen the shutter speed by reducing the amount of light with a fixed ISO setting and thereby conceal the jerking with the help of motion blur .... If you like blurry videos, this is the solution.
I want crisp videos at all times - so I prefer to increase the frame rate and not use an ND filter.
With a fixed ISO value of 100 and a shutter speed that makes the video a bit brighter at 50/60 FPS with 2k7 resolution, I achieved the best results for myself.
In post-processing I then put a very light "noise filter" over the video and darken it a little (correct the black level). If necessary, I intensify the color value marginally in order to adapt the DJI video to the colors of my GoPro.
I set the yaw value in the gimbal settings to 6 degrees / second in cinema mode and 12 degrees / second in normal mode. In the cinemode the pan is slow enough to get a smooth video with pans even at only 25FPS.
As for the digital noise - as already written, you can reduce this a bit by recording the video a little brighter than usual and then darkening it in post-production.
Allderings would be better if one could reduce the sharpness a bit when taking the picture - like this for example. is possible with GoPro - the digital noise can also be seen in low light, higher ISO values ​​and strong sharpness.

Since I can hardly see any difference in the details and sharpness when recording 2k7 and 4k, but videos become jerk-free and sharp with 50FPS, I now only record in 2k7 with 50FPS and then render these videos in 4k - Compared to 4k50FPS videos from my GoPro 8 and 9, such a DJI "highly rendered" video is in no way inferior ...

Photo Drone Posted at 3-13 09:33
Funny thing I tried this.

Went from 30 fps 4k to 60 fps in 2.7k and it looks much better.

The Mavic Air 2 DOES have 60 fps 4k. Rather than struggle with a workaround on the Mini 2's noisy 4k, I just ordered a Mavic Air 2. I had doubts about the new sensor since it's only 11-percent larger than the Mini 2 sensor. But I did a lot of reading yesterday and found it's a different sensor, different approach, quite a refinement. https://www.cined.com/dji-mavic-air-2-review-first-look-4k-60p-1080p-240fps/

I had doubts about the interpolated 48mp photo  output with a 12mp sensor, but after looking at photo samples, it's impressive, a bit of digital magic.  

I have the same problem...
First, I only film in 1080p. I don't need the big files and resolutions.
Compared to the Mavic Mini, which I've had for a year, the Mini 2's videos are significantly grainier in 1080p. So it could be the video encoder because the optics of both drones are the same.
Has anyone already made the comparison with the Mavic Mini and noticed the deterioration? I hope DJI recognizes the problem and can fix it.

exactly the same problem.
https://drive.google.com/file/d/1MUb1ty9hgmp4yImj76sMVQf04JfqCX_2/view?usp=sharing (better download for understanding) the image starts to pixelate from 15 seconds. at this moment the camera starts to change the angle of shooting.