[ONE General] vantt1:
Introduction

If you own a OnePlus One and have kept up with news covering it, you should already be aware of the infamous "yellow tint/band/gradient/screen/tinge" (how many terms have been coined for this phenomenon?). If not, basically, it's an issue that has evidently plagued some* OnePlus Ones.

*I find that people can be generally divided into four camps:

All OnePlus Ones are perfect, the yellow tint doesn't exist

All OnePlus Ones are affected, none are perfect

Some^ OnePlus Ones are affected to different extents, but most are unaffected

Most^ OnePlus Ones are affected to different extents, but some are unaffected

^The proportion of affected vs. unaffected Ones is very unclear. Both of these cases are based on the fact that there are people who own OnePlus Ones that are completely fine, and the portion of affected users are the vocal minority.

I'm in the third camp. Mine has shown the tiniest bit of tint since day one (bottom 1/10th of the screen, more visible when looking down from above), remained unchanged after a month of owning it, and to this day remains unchanged as of the day before yesterday (17th December 2014).

SPOILER: 1 Month of Use

SPOILER: Day Before Yesterday

Pictured: [MENTION=5525731]Aaahh[/MENTION]'s pretty neat software fix, turned off

I need to learn how to work the manual settings on my camera.

When displaying a prominently white screen/image/webpage, there is a visible yellow "tint" (let's just call it a tint for now) at the bottom of the screen that's "yellow-er" than the rest of the screen, right above where the capacitive buttons are. It is also the edge where the backlight LEDs are situated. Now, its severity depends from case to case, and often it doesn't really affect functionality, but it's there, when it shouldn't be.

OnePlus has kinda addressed this in two threads, but the conclusion was a bit ambiguous. The first thread thread addresses an "overall yellowish hue", and details how OnePlus sources panels from JDI, different factories have different batches, different screen temperatures, other flagship phones also suffer from this etc....and the second thread thread lines up the One with other phones and is seemingly normal.

As far as I know, "officially" speaking, this issue doesn't exist. People have RMA'ed their yellow tinted One (success? failure?), others who have purchased multiple Ones have the tint on all of them (at different extents, never subsided), and some other stuff. I couldn't keep track of it all.

So, knowing me, I downloaded the RAW files from the second aforementioned thread and checked the EXIF data. I'm sure their one wasn't affected, so it wasn't to determine whether the image was doctored. I just wanted to know all of the settings they used to take those two pictures, so I could replicate those shots. It's a good opportunity to try out my Canon 450D!

Note that the Canon 6D is a full frame camera, and the Canon 450D is a crop frame, so there's a crop factor difference of 1.6x. Full frames also capture more light than crop frames, among other differences like how the 450D is only 12.2 MP and doesn't have multi-segment metering...it was free though, so I can't complain :silly:

Picture 1: f/4, 1/125 s, ISO 100, 24-105 @ 47 mm, no flash, using Manual mode and multi-segment metering (+ a whole bunch of other stuff)

Picture 2: f/4, 1/25 s, ISO 320, 24-105 @ 50 mm, no flash, using aperture-priority AE and multi-segment metering

My attempt at replicating those pictures (to emulate the wider angle of a full frame, I used a 32 mm focal length instead of ~50 mm, which also changed the aperture from f/4 to f/4.5):

Left is unaltered original, right is messing around with levels

Picture 1: f/4.5, 1/125 s, ISO 100, 18-55 @ 32 mm, no flash, using manual mode and center-weighted average metering

Picture 2: f/4.5, 1/20 s, ISO 400, 18-55 @ 32 mm, no flash, using aperture-priority AE and center-weighted average metering

I'll see if I can upload my RAWs too.

Conclusion? I'm a noob at Photoshop/photography. But I can see why people alter the picture and take them at extreme angles; it's too hard to capture on camera. You see it with the naked eye, but it's really hard to capture what you see using a camera.

From the second thread:

Interactive part! To those who have a yellow tint that's more visible than mine, take a picture of it and post it below.