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Hãy viết đoạn tóm tắt về nội dung bằng tiếng việt kích thích người mua: The Pixel 8 Pro Camera Has Some Issues. Here’s How to Sidestep Them

As a photographer, I wanted to love the Pixel 8 Pro’s new high-end camera technology. But some issues started my relationship with Google’s flagship smartphone on the wrong foot.

Two software updates have already made big improvements. The phone’s camera hardware foundation is strong, too. But if you’re spending $1,000 or more on the Pixel 8 Pro, especially if you’re keen on its photographic abilities, I think you’ll benefit from what I’ve learned.

I spent hours pixel peeping at test photos, talking with Google camera designers and swapping files with my colleague Andrew Lanxon, who wrote our Pixel 8 Pro review and who, by the way, happens to be a pro photographer.

In short, I believe Google’s new phone is generally a step up, with better light-gathering ability than last year’s Pixel 7 Pro and often more detail than Apple offers in its iPhones. When the light is good, it’ll capture a lot of detail that’s great for landscape and architecture photos.

The trouble spots crop up with close inspection of shadowed areas and jumbled tree branches. And when shooting top-quality photos, the high-resolution sensors bring slow shooting performance. At least for now, you have to be judicious about how you use the phone if you want to go beyond 12-megapixel JPEGs. 

Here’s my assessment of the trouble spots, advice on how to sidestep them and the likelihood that Google will patch them up.

Beware shadow noise

Google has done a remarkable job squeezing more image quality than I’d have thought possible out of tiny smartphone cameras. One of Google’s biggest computational photography skills has been coping with the bad dynamic range of smartphone image sensors: They struggle to capture both shadow detail and bright highlights.

With its HDR Plus technology, Google pioneered an approach that marries several underexposed frames into one final photo. That helps reveal what’s happening in the shadows while keeping bright skies from washing out into a white sheet.

But with the Pixel 8 Pro, I found shadow areas sometimes suffered from a unnatural, blotchy noise patterns when I was shooting high-contrast scenes with bright and dark areas. And in dim conditions, the phone sometimes erased textural detail altogether. Testing lab DXOMark also dinged the Pixel 8 Pro for wiping out details and textures at times, though overall rating the phones cameras very highly.

Shooting with Night Sight mode and in low-resolution modes can help, and the problem isn’t as likely to bother you as it would if you’re not zooming in, cropping or boosting exposure when you’re editing.

Moderate your megapixels at night

With modern pixel binning technology, image sensors can often shoot at a high resolution when there’s enough light and then group 2×2 pixel quartets into one larger pixel that effectively gathers more light.

Apple automatically switches its newer iPhones to low resolution when it’s dark out, but Google leaves the choice up to you. I recommend switching the Pixel 8 Pro to 12-megapixel mode for nighttime shooting.

I expect a lot of image noise in the dark areas of nighttime scenes. In my test shots, the accumulated noise at 50 megapixels was high enough to obscure details that were still visible at 12 megapixels. When it’s merely dim, 50 megapixels is more defensible.

“You will always get more detail by enabling 50 megapixels,” than with 12 megapixels, thanks to heavier processing that can kick in when it’s dark, Reynolds said in an interview ahead of the Pixel 8 Pro launch.

But I’ll be shooting at 12 megapixels when it’s dark. Even with Night Sight active, I found results better when the camera shot at a higher ISO and thus higher shutter speed, even though that means more noise. That indicates that camera shake might be harder to counteract with the finer pixels.

And to be clear, I do think the light-gathering ability of the Pixel 8 Pro is better than last year’s Pixel 7 Pro, especially with the ultrawide camera. Wider aperture lenses and bigger image sensors are helpful.

Rainbow shards of stained glass

I found another problem that crops up when taking photos of zigzagging branches, twigs or jumbled leaves with the sun or a bright sky behind. In some edges and corners of these geometrically jittery areas, the Pixel 8 Pro adds various colored patches. To my eye, it looks like somebody scattered stained glass in the trees.

The good news is that means it’s only obvious when you’re zooming in or cropping, though I notice it looking at photos full size on a laptop screen. It’s more apparent when shooting JPEGs with the main camera at 2X, which upscales the imagery and the artifact.

The issue is caused by Google’s attempt to keep the image as sharp as possible, the company said. It’s a matter of aliasing, a phenomenon that complicates details whose structure is on the same very fine scale as the image sensor’s individual pixels.

“Our goal is to maximize detail by allowing aliasing, even as we work through this artifact in the software pipeline,” Google said, indicating image processing improvements should address this issue too. “We are very confident the rainbow artifact is the result of aliasing, which is caused when the lens resolves significantly more detail than the pixel.”

The good news is that the rainbow colors aren’t a huge problem unless you’re zooming in or cropping your photos. And you can moderate it by fiddling with Lightroom’s chromatic aberration controls.

Overall, the Pixel 8 Pro introduces some welcome hardware upgrades that photo enthusiasts should enjoy. Google has fixed some early glitches, and I hope it can improve some more with software updates. That’ll help keep photo enthusiasts like me more excited about Google’s phones.

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