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iPhone 8/8 Plus/ X Camera Performance
- Thread starter AKS3003
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found this on the net
- iPhone 6S (1/3in sensor) = 4.15mm x 7.21 = 29.92mm for a 35mm equivalent lens.
- iPhone 7 Plus main sensor = 3.99mm x (7.21?) = 28.7679mm, very close to Apple’s claimed 28mm.
- iPhone 7 Plus telephoto sensor = 6.6mm x (8.6?) = 56.8mm, very close to the claimed 56mm as well. For a 1/3.6in sensor, the crop factor is 8.6.
That slow-sync flash is a pretty big deal, allowing the camera to expose more of the background while simultaneously exposing the foreground with flash. This is a feature usually found on dedicated cameras, and it makes a big difference in lower light when using flash.
I also see that the fixed the stepping aperture problem when shooting video (where you could see harsh visible transitions when moving from a dark to light area or visa-versa. Exposure transitions seem to be much improved (though you can still see a transition when it moves from the wide to the tele lens, which is understandable).
Being able to shoot at 4k in 60fps is a VERY big improvement as well, but I'm wondering if there are any limitations in this mode (other than BIG file sizes)? I assume OIS will still work, otherwise I won't use it. And I wonder if there is a shooting time limit? Most Android phones have a recording time limit when shooting 4k in 30 fps, let alone 60 fps. If the iPhone can shoot 4k/60fps without a time limit, that would be a pretty big achievement in terms of heat dissipation.
I also see that the fixed the stepping aperture problem when shooting video (where you could see harsh visible transitions when moving from a dark to light area or visa-versa. Exposure transitions seem to be much improved (though you can still see a transition when it moves from the wide to the tele lens, which is understandable).
Being able to shoot at 4k in 60fps is a VERY big improvement as well, but I'm wondering if there are any limitations in this mode (other than BIG file sizes)? I assume OIS will still work, otherwise I won't use it. And I wonder if there is a shooting time limit? Most Android phones have a recording time limit when shooting 4k in 30 fps, let alone 60 fps. If the iPhone can shoot 4k/60fps without a time limit, that would be a pretty big achievement in terms of heat dissipation.
I have noticed that EXIF data from both iPhone 7 and iPhone 8 mention 4 mm focal lengths. These are the actual lengths not equivalent lengths.
If the sensor for the 8 has been increased in size, this would lead to wider field of view which I haven’t observed in any of the sample photos I have seen.
I wonder if the EXIF data is being read incorrectly or what the story is exactly.
If the sensor for the 8 has been increased in size, this would lead to wider field of view which I haven’t observed in any of the sample photos I have seen.
I wonder if the EXIF data is being read incorrectly or what the story is exactly.
The difference in sensor size is likely minuscule. It's not like we are going from a standard smartphone sensor to a 1" or bigger sensor like those found in mirrorless cameras. Still, your point is valid and it would be interesting to see an actual test of field of view differences between the two cameras.
Seems like a big update to me. Especially when it's dark.
What is slow sync flash? is it an option on the phone?
Slow sync flash is where the camera is able to use a slower shutter speed to exposure a background while simultaneously illuminating a foreground subject with the flash. Basically, it helps balance exposure between foreground and background in a low light situation. It can also be used to create motion blur in the background for special effects.
I'm not sure if it's a setting you have to enable or if it does it automatically in low light. I would think it's a setting because you might not always want to use it (for example, when a foreground subject is moving, you want a faster shutter speed).
Worth noting that as long as the flash itself is very fast, you can still freeze a moving foreground subject when using a slow shutter sync.
I noticed the wider FOV in the first pictures the verge uploaded comparing it to the ip6/7
https://www.theverge.com/2017/9/19/16323570/apple-new-iphone-8-review-plus-2017
It looks more like a 25-26mm lens now perhaps even wider - bit disappointing as 28-29mm was perfect for everyday shots. Now there's going to be some heavy perspective distortion on close up objects.
Idk about that. You have to look at where the picture is framed by checking out what's in the corners, and ensuring they match up. They seem pretty much identical to me, if anything, maybe ever so slightly wider on the 8. And then the Pixel XL is like 40% wider lol.
Most of the images look the same, one looks like the 8 is wider due to the subject being further away, but if you look at the buildings in the back, it's practical identical.
If you look at 7:37 mins in, you'll see the 8 actually looks more narrow in that shot, if anything.
So I believe they're probably the same. I would love for a wider lens though.
Seems like a big update to me. Especially when it's dark.
The fact the X should theoretically take even better photos than the iPhone 8 Plus with the OIS telephoto camera... I really want to look at photo samples between the three phones.
I've recently taken pics on my 7 only to notice later how bad the smearing is. I'm hoping for improvements also.
Is this a hardware or software feature? Are the 8, 8+, and X the only iPhones with the hardware for slow sync flash?
Not sure if this is hardware, software or a combination of them. It's only available for whatever reason on the 8, 8+ and X. If it was software driven, it theoretically, could be available to other iPhones as well, but that would cut into the desirable features needed to sell more of the 8's and the X's.
There is definitely a hardware component (requiring the flash to fire very softly since the shutter is open longer), but I can't tell you whether the previous iPhones would be capable of it or not. Even if they are, you can be sure Apple is not going to enable it since it's a feature that shows off the new models.
Probably the only difference is noise reduction, which wouldn't be noticed unless you take relatively low light photos. Therefore most reviewers wouldn't see much of a difference. Skin tones and colors in general seem to be more evenly balanced, without looking as washed out as the 8; maybe more contrast as well. That's what I notice to my eye. I'm not seeing any inherent increase of quality though, but I do think the pictures look better in general. Kind of look closer to the S8 now, rather than looking a little weaker on the color front.
Pretty impressive. Looks like they fixed and improved upon the weaker points of the 7 Plus.
If it weren’t for the X I’d have got an 8 Plus today. No question. The fact is if the X’s cameras offer better performance than the 8 Plus it will be truly amazing for mobile photography.
Sensor size according to DXO Mark is 1/2.8inch. So .2inch bigger than the iPhone 7 I believe.
I think so, it looks the same in most of the sample images too when they're framed properly