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Possible to take 4K videos with Xperia XA2?

asked 2018-11-19 15:24:30 +0200

Cryx gravatar image

updated 2018-11-19 15:25:23 +0200

Xperia XA2 supports taking 4K videos under Android. Does Sailfish X offer this option too? What about the camera quality of a Xperia XA2 running Sailfish in general?

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answered 2018-11-19 17:40:53 +0200

mlohse gravatar image

updated 2018-11-19 17:56:18 +0200

First, I did a short comparison between the factory installed Android and Android with bootloader unlocked, because some people mentioned that camera quality might suffer, when some DRM-keys are deleted. However, the camera app didn't complain and I wasn't able to see any difference in image quality. So for those who might want to switch back to Android after testing SFOS3 this shouldn't be a problem (unless there are other features you need, like streaming to a tv).

On SFOS3:

  1. Resolutions: For the main camera it's either 16:9 (20Mpix) or 4:3 (16Mpix), front camera: 16:9 (4Mpix) or 4:3 (8Mpix), Video was taken in FullHD (main camera) and I haven't found a setting to change that (yet)

  2. Blurred screen edge: The main camera seems to have a small issue with the left(landscape)/upper(portrait) 5-10% of the screen appearing slightly blurred in 9 out of 10 images taken. I have compared this with a college's XA2 running Android and there it was almost not noticeable, but if you're looking closely you can find the same effect there - might be a hardware issue, I don't know.

  3. Low light: When taking pictures in low light situations (e.g. insight rooms) image quality degrades of course. Colors suffer a lot and you see some noise. This is where Android clearly outperforms Sailfish OS.

However, compared to my Intex AquaFish image quality is a very huge improvement!

Test images, just to give you a first impression (I hope it doesn't get downsized too much):

  1. Good conditions, brilliant sun light, but notice the unsharp left edge image description

  2. Difficult conditions, high contrast (bright sky). This image was taken at 15:20, when the sun had already disappeared behind the mountains (colors are almost gone and it looks way darker than it actually was): image description

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@mlohse: The exposure conditions in the second image depend on where you tap on the liveview screen. Tap somewhere in the foreground and you will have white sky and green trees. Tap on the sky and it will be blue and the foreground is all black (maybe except for the river reflections).

There's not so much you can say about the SF camera until you show an Android comparison with the same exposure settings.

Spark ( 2018-11-19 18:20:42 +0200 )edit

Yep, sorry. As said, this is only meant to give you a first impression. It's usable for daily life and Facebook, but if you want to print your photos on a poster, you may need a more decent camera. To make it clear: If you currently own a Jolla 1 or Jolla C/AquaFish and want a better camera go for the XA2 - it's a huge improvement. If you're already using the XA2 with Android, you'll loose some quality, but not a lot (for me it's acceptable).

I can't do a full comparison here as I don't own a second XA2 with Android on it. The test pictures taken with my colleague's XA2 where taken in the office and unfortunately contain some information I can't post here in public :( While picture 1 was a no-brainer (just click and you're done) I've tried hard to get the most out of picture 2: I've changed the exposure time and of course moved the focus around. But either you get a nice blue sky, with everything else completely black or noisy rocks and river with a completely white sky. The picture I posted was the best I could get with the focus on the mountain's summit and exposure time increased by +0.5.

mlohse ( 2018-11-19 18:57:33 +0200 )edit

Also xperia x is able to capture 4k video. But it's not necessary until Jolla compile 4.4 or 4.9 kernel to xperia x, because due the camera drivers are crap in older kernels.

Jk ( 2018-11-19 21:00:01 +0200 )edit
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Asked: 2018-11-19 15:24:30 +0200

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Last updated: Nov 19