Err,  I do not get it : the camera is 20MP,  and the sales person at the shop told me, YES, you can do 20MP photos with this camera drone.

Yet, I 've shot few , and I never see any above 16MP... What am I misssing?  I bought this drone as the minimual model supporting 20MP stills, and yet I cannot do any seems..

Anyone?

Now checked the RAW images it generates, and I see only a DNG file, and by information tag it's a 17MP 34.5 MB file, but this is not a 20 MB image.....

The explanation is simple.
You have a choice of two aspect ratios with that drone.
You can shoot either 3:2 or 16:9.
You are shooting 16:9 which chops off some of the top and bottom of the image.
If you want 20 MP images, you need to select the 3:2 aspect ratio to use all of the sensor.

Aspect ratio 16:9  5472×3078 = 16.8 MP
Aspect ratio 3:2    5472×3648 = 20 MP

Labroides Posted at 8-3 18:57
The explanation is simple.
You have a choice of two aspect ratios with that drone.
You can shoot either 3:2 or 16:9.

Hey Thanks for replying,

Still no luck : changed the aspect ratio, now I get  18.97 MP, 5464x3640 38.91 MP image file (DNG , the RAW option that DJI fly app allows).

Not quite 20 MP yet.... So anything else ..?
If I select 16:9, this gives 5464x3070, 16MP, 32.84 MB image file..

v01d Posted at 8-3 20:19
Hey Thanks for replying,

Still no luck : changed the aspect ratio, now I get  18.97 MP, 5464x3640 38.91 MP image file (DNG , the RAW option that DJI fly app allows).

Check your arithmetic
5464 x 3640 = 19,888,960 pixels.
That's 20 MP (or near enough for the marketing people to call it that).

Labroides Posted at 8-3 20:37
Check your arithmetic
5464 x 3640 = 19,888,960 pixels.
That's 20 MP (or near enough for the marketing people to call it that).

Ye, didn't do this by hand, that's what the Adobe app was showing under info, as well as DJI app.
Might have mixedup info for 2 different images,

I see anywhere between 18.97 - 19.04,  as it reports. I don't understand why the difference, what its due. I would rather fix to max all the time.

Labroides Posted at 8-3 20:37
Check your arithmetic
5464 x 3640 = 19,888,960 pixels.
That's 20 MP (or near enough for the marketing people to call it that).

Now checking the same files in just the iPhone's photos Info, it shows me

20 MB  , 5472x3648

If we multiply this out thats 19,961,856

Another shot I see at 20MP , 5464x3640     .  Thats 19,888,960.

And if I open exact same files in my Adobe Photoshop express for iPhone,  the first one it reports
as 19.04 MP  (same pixels 5472 x 3648 ); and the other as 18.97MB  (same pixels 5464 x 3640).

So I don't know if this is a bug in this Adobe app version, or iPhone phtos, but at least both apps agree on the pixels per image..

Hello there v01d. I am sorry for the trouble this has caused and thank you for reaching out. Kindly please refer to the post given above by Labroides for reference with regards to this natter. Thank you.

v01d Posted at 8-3 21:12
Now checking the same files in just the iPhone's photos Info, it shows me

20 MB  , 5472x3648

And if I open exact same files in my Adobe Photoshop express for iPhone,  the first one it reports
as 19.04 MP  (same pixels 5472 x 3648 ); and the other as 18.97MB  (same pixels 5464 x 3640).

Forget everything you've been going on about.
20 MP is 20 million pixels and that's all you need to know..

Labroides Posted at 8-3 21:31
And if I open exact same files in my Adobe Photoshop express for iPhone,  the first one it reports
as 19.04 MP  (same pixels 5472 x 3648 ); and the other as 18.97MB  (same pixels 5464 x 3640).

That's a bit of a lame suggestion, because 5472 x 3648 is as per yours/ours calculation above, and that's
just _under_ 20 MP..

So no, I can't forget about it.  I should have read the spec more carefully.   Mavic 3 on the other hand, also says 20 MP, but the pixel image size spec is just __OVER__ 20 MP...

Do you sense this ?
Air 2s spec :
20 MP
5472×3648 (3:2)
5472×3078 (16:9)

Mavic 3:
20 MP
5280×3956


So Mavic 3's is 20,887,680...   I like that number more simply 'case  , > 20 MP ....

v01d Posted at 8-3 21:43
That's a bit of a lame suggestion, because 5472 x 3648 is as per yours/ours calculation above, and that's
just _under_ 20 MP..

That's a bit of a lame suggestion
What's really lame is you continuing to make like this matters.
You came here not realising that you were shooting with an aspect ratio that gave you a smaller image, and you've learned something


You better get on to every camera maker out there and tell them that their specs aren't accurate enough for you.
None of them advertise their cameras as 19.8 MP or 20.1MP.
Or you could just understand that the marketing world uses simple round numbers.

Anyone who understands just the very basics of photography, knows that 0.2MP makes no difference to anything.

Labroides Posted at 8-3 22:07
That's a bit of a lame suggestion
What's really lame is you continuing to make like this matters.
You came here not realising that you were shooting with an aspect ratio that gave you a smaller image, and you've learned something

Thanks , Labbie, I feel that you started with helping, then switched to dominating & asserting,
and explaning basics of what MP stands for ...  Solly.

I can calculcate MP Ok, but I know jack about photography, i wont' argue that.  And yes, I would think such small difference  shouldn't Not matter, but.. BUT.  If someone advertises & sells a cam as 20 MP, I would think it's at _least_ that much, not under ....

So marketing bull...? I I get it.

Why I care? well not for any image size personally.  Only if I'm asked to deliver a 20MP image, and I came with 19.9  that's not 20.

So don't be so , affirmative, trying to explain that things get rounded.  You starting to sound just a guy protecting the little that he knows.

Common, I thought you honestly were keen to explain, but now you just trying to shut me up.

Do you work for DJI or what ?

v01d Posted at 8-3 22:22
Thanks , Labbie, I feel that you started with helping, then switched to dominating & asserting,
and explaning basics of what MP stands for ...  Solly.

I feel that you started with helping, then switched to dominating & asserting, and explaning basics of what MP stands for
I started with helping and then you switched to trolling.

Why I care? well not for any image size personally.  Only if I'm asked to deliver a 20MP image, and I came with 19.9  that's not 20.
So you don't know jack about photography and your concerned about being asked to deliver a 20MP image.
Well lucky for you, everyone else understands what 20 MP maens.
But who would be asking you to photograph anything for them?

So don't be so , affirmative, trying to explain that things get rounded.
Don't explain the very thing you were asking about?

Common, I thought you honestly were keen to explain, but now you just trying to shut me up.
That's what happens when you ignorantly troll and push too far.

Do you work for DJI or what
Are you 12 years old or what?

Now, Labroides and I don't get along at all, but he has given you the correct answer multiple times with explanations and you continue to argue with him about something very small.

You are getting all kinds of hurt over 100,000 pixels of information which is only .5% of the whole image. It's not a big deal. Are you like this with everything? Do you get mad that your 250g SSD only has 237g after formatting? Most things in life aren't exact... and that's ok. Just get over it.

Common, I thought you honestly were keen to explain, but now you just trying to shut me up.
Labroides did explain... Now, you do need to shut up

One thing you are completely missing. Sensor size and picture size are two different things. You will NEVER get a 20 meg picture from a 20 meg sensor. It doesn't work that way.

Well, thanks all for replying, and

I did contact yesterday DJI support official by phone, and did kinda expressed my dissapointment with  < 20 MP on-the-dot actual size, and my dissatisfaction with it being rated 20 MP (lol, yes).
I also did explicitly said I know Jack About photography - well, I knew jack yesterday, now I know a little bit about MP rating & marketing I guess.

DJI support was actually very very nice. They contacted me back by phone, x2. Asked all I wanted and how I was sold this drone, and they even went back to investigate if there is option in software to just give full 20 MP Inogring all aspects ratios (oh wow, I would think that would be a hack, if possible) .  And of course there isnt / wasn't atm, but its all great.

The guy from DJI also asked me about my client dmanding images of 20MP, and then said, they might be clueless if they would consider 19.xx MP as non 20, and if so, he said I can use an app LightRoom (?) to just upscale that little bit to the required size, with no change in quality really

Also, the DJI guy offered future good discount on Mavic 3 shall I want it in future.  Overall, it's best I could get from them I think, as to buy a drone with cam that does to true 20 MP that would be $$$$ significatly more expensive, another beast all together.

Thanks guys to all you here

blue_canyon21 Posted at 8-4 09:46
Now, Labroides and I don't get along at all, but he has given you the correct answer multiple times with explanations and you continue to argue with him about something very small.

You are getting all kinds of hurt over 100,000 pixels of information which is only .5% of the whole image. It's not a big deal. Are you like this with everything? Do you get mad that your 250g SSD only has 237g after formatting? Most things in life aren't exact... and that's ok. Just get over it.

Try to tell me to shut up, and I  ferk U jep, khaant

( Why is that any lamer who overspends time on a forum and who isn't an official support person feels the need to behave like they own the damn forum..? I totally don't get it )

have a good day further

v01d Posted at 8-4 15:52
Try to tell me to shut up, and I  ferk U jep, khaant

( Why is that any lamer who overspends time on a forum and who isn't an official support person feels the need to behave like they own the damn forum..? I totally don't get it )

Instead of getting mad for being corrected, maybe you need to do a little research on digital photography and sensor size. You might be surprised to find that NO sensor uses ALL of its advertised size.

Mobilehomer Posted at 8-4 19:26
Instead of getting mad for being corrected, maybe you need to do a little research on digital photography and sensor size. You might be surprised to find that NO sensor uses ALL of its advertised size.

You are right, I do need to do some search on it. No argument there...

Can you post your files here?

Mini-G Posted at 8-5 07:57
Can you post your files here?

What for?

There's nothing special about his files.
They will be the same as those from anyone else with the same drone.

v01d Posted at 8-5 00:31
You are right, I do need to do some search on it. No argument there...

I’m really amazed you own a Mavic 1 (2016) a pocket camera and all that time you learned nothing about MP’s or photography “strange”

hallmark007 Posted at 8-8 14:11
I’m really amazed you own a Mavic 1 (2016) a pocket camera and all that time you learned nothing about MP’s or photography “strange”

I know, right ..? all this time...  Pocket cam is dusting in some drawer i got borred with it
I see it's very impressive  (Even people leave these unrelated comments on a different subject thread..)

Had no interest in photography as such, just drone flying which is always awesome. Point & shoot, that's most use case for me.

Sorry, won't reply on this thread anymore, Need to work on my PhoToGraPhy

Mini-G Posted at 8-5 07:57
Can you post your files here?

Hey Mini-G,

Appreciate the offer, I would deff Use it if I was still in doubt about what the drone produces size wise.

Some total pixels variation may be from shot to shot but otherwise the max is exactly as per spec.

Thanks again for the offer to check on it

v01d Posted at 8-8 15:53
Hey Mini-G,

Appreciate the offer, I would deff Use it if I was still in doubt about what the drone produces size wise.

Some total pixels variation may be from shot to shot but otherwise the max is exactly as per spec.
The pixel size doesn't vary from photo to photo.
It's the same for all images.

Labroides Posted at 8-8 17:41
Some total pixels variation may be from shot to shot but otherwise the max is exactly as per spec.
The pixel size doesn't vary from photo to photo.
It's the same for all images.

It did for me, you can read my post before this.

How I check it  in case you ask - per file explorer, or , per editing app. Both reported pixel variation on 2 raw images I have compared. A definite variation between 2 files shot in ~5 seconds apart.

Might be the app reports it wrong again, but I could check with my raw file tools perhaps.
I even re-post for you from above:  19,961,856    vs 19,888,960.  
This is !=
"

19,961,856 Another shot I see at 20MP , 5464x3640     .  Thats 19,888,960.

v01d Posted at 8-9 18:12
It did for me, you can read my post before this.

How I check it  in case you ask - per file explorer, or , per editing app. Both reported pixel variation on 2 raw images I have compared. A definite variation between 2 files shot in ~5 seconds apart.

What you are claiming as "proof" is dubious.
It's nonsense to suggest that the pixel dimensions of dng files are varying from one shot to another.
It doesn't happen with any digital camera.
If you are sure that you've got this happening, upload two files you think support your claim to dropbox or similar and post a link here.
I'm guessing that you can't.

Labroides Posted at 8-9 19:06
I can't work out what you are claiming as "proof".
But it's nonsense to suggest that the pixel dimensions of dng files are varying from one shot to another.
It doesn't happen with any digital camera.

Mate,   you overposting and .. just not laying off this my thread of mine, and now keep posting things that I don't even ask for.

What I Saw Is what I saw / seen.   I'm not even interested in this anymore, BUT,  next time I do make the images and check the exact same pixels difference I will post.

Thanks again, and this thread ( my thread) is Closed for me, original question was answered.

( ClAiMinG as Prooff.. Geees seriously ?   )

v01d Posted at 8-9 19:13
Mate,   you overposting and .. just not laying off this my thread of mine, and now keep posting things that I don't even ask for.

What I Saw Is what I saw / seen.   I'm not even interested in this anymore, BUT,  next time I do make the images and check the exact same pixels difference I will post.

The issue is your lack of understanding of the most basic photographic concepts.
Pixel size does not and cannot vary between shots from the same camera.