4080x3072 (4:3) vs 4080x2296 (16:9) vs 4080x1792 (20.5:9)

[JEDI]

My phone camera takes 4k pics:
4080x3072 (4:3, 12.5 mpixels)
4080x2296 (16:9, 9.4mpixels)
4080x1792 (20.5:9, 7.3 mpixels)

My understanding is use 4:3 when doing portrait pics and 16:9 when doing landscape pics.

When do you use 20.5:9 mode?

 

[gradoman]

My phone camera takes 4k pics:
4080x3072 (4:3, 12.5 mpixels)
4080x2296 (16:9, 9.4mpixels)
4080x1792 (20.5:9, 7.3 mpixels)

My understanding is use 4:3 when doing portrait pics and 16:9 when doing landscape pics.

When do you use 20.5:9 mode?

When you want to simulate (pretend to be) being a filmmaker.

 

[JEDI]

My phone camera takes 4k pics:
4080x3072 (4:3, 12.5 mpixels)
4080x2296 (16:9, 9.4mpixels)
4080x1792 (20.5:9, 7.3 mpixels)

My understanding is use 4:3 when doing portrait pics and 16:9 when doing landscape pics.

When do you use 20.5:9 mode?

Answer:

Ultrawide formats - Wikipedia

en.wikipedia.org

- What is the resolution of ultra wide camera?
Ultrawide resolution can also be described by its height, such as "UW 1080" and "1080p ultrawide" both stands for the same 2560×1080 resolution.

That's 2.37:1 aspect ratio.
21:9 = 2.33, which is close enough.

On my phone, ultra wide is the .5x button

 

[nOOky]

I always use the full mode with my S23 Ultra. It completely fills my phone's display, and I have 21:9 monitors at home. It yields 4000 x 1868 images or 2.14:1. The only time I use 4:3 is if I'm taking an image of a round or square object, otherwise I prefer landscape.

A recent update now let's you select 1:1 images, and all modes let you select 12mp, 50mp, or 200mp.

 

[biostud]

Personally I crop my photos in post to whaterever aspect ratio I feel like if it improves composition.

Otherwise it also depends on which media you primarily use to view your photos.

 

[Red Squirrel]

Use whatever mode has the most pixels as you're gathering more information in the photo. You can always crop if you want a specific ratio.