Grainy video

Questions & Answers
1

Good evening all,

I assume this will have been asked hundreds of times before so sorry if I’m in the wrong place.

I have been recording some footage on the inspire 1, I have only ever shot in Automatic mode as I am not that clued up on manual mode.

I was filming today and it was an overcast/ rainy at time. I was filming military training so unfortunately I cannot post for obvious reasons. But the footage was in 4K but played back it it really pixilated and grainy and generally poor quality.

I had similar with some of the stills being a little grainy when I zoomed in…

I will be shooting some more tomorrow and would like it to look perfect as there is a possibility it could be used as an Army wide promo video, andost of the stuff shot today is unusable.

Any advice or guidance is greatly appreciated as I have said so many times before I’m new :man_facepalming::man_facepalming::joy:

2

If you can film something you can share, let us know.

We’d only be throwing 101 random guesses at the problem otherwise.

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3

If it was dull and you were shooting in auto then you had no control over ISO, shutter speed or aperture. If the algorithm decided that raisng the ISO was the way to ensure correct exposure then that could be an explanation for the “grain”.

The higher the ISO the noisier the image - easily seen in areas of continuous tone such as overcast skies. To avoid it is a matter of adjusting shutter and aperture to allow the maximum light through the lens - with compromises to image blur and depth of field obviously.

Your editing software may well have a boise reduction option you can use to correct some of the problem.

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4

One down, one hundred to go :slight_smile:

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5

Not a eandom guess.

The answer has a grain of truth …

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6

Any other guesses that people make will too :blush:

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7

Vary likely IMHO, without seeing the footage.

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8

I suppose I could get away with one… Noone is identifiable and its nice and short.

9

Not the best example. Of what I am explaining but some is visible.

10

Is that the resolution that you’re recording at … 720p?
Is that from the memory card in the drone?

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11

Dirty lens :rofl:

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12

I downloaded it directly from the DJI Go app. Settings were set at 4k.

13

That would have been my guess. I gave up using Auto mode after some great video opportunities got wrecked on auto and I couldn’t tell until I was home :weary:.

Low iso, careful appurture settings and filters usually get great results.

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14

The app records the video cache at 720p - which is what I think you’ve uploaded.

If you can find the 4k version on the card in the drone and upload that it could give a far better idea of what the issues may be.

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15

Not sure about the grainy footage… but it seems a bit mean hovering over that guy and giving hid position away when he’s clearly trying to be sneaky. :wink:

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16

There was 31 of them and I was flying back and forth to make sure I didn’t give any positions away

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17

Thanks. I will have a look.

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18

Sorted :ok_hand: I downloaded the footage straight from the memory card and its far better. Thanks!

I have always downloaded through the app once finished flying so I think I haveade this mistake many times before :man_facepalming::man_facepalming:

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19

It is possible to force the transfer of the 4k video to your device using the app … after the flight, but …

  • for 4k video it takes a while,
  • the drone needs to be powered up … using the batteries and resulting in more recharging than is necessary,

They can also be copied direct to a computer via the USB cable by connecting it to the drone, but …

  • whilst quicker than copying via the app - this still depletes your batteries since the drone has to be switched on.

For me, it’s simple. My drone batteries are for flying - not for copying data. So I always remove the card and put it in my laptop, or my phone’s SD Card reader. :wink:

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20

I only occasionally use the USB card to transfer files but from now on I will do this every time… Thanks again.

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