If you own a first or second generation Pixel there is nothing to worry about because Google has promised that Night Sight will roll out to the older handsets as well. The Night Sight works best when there is minimal light and photos taken in regular mode produce grainy images.
As you can see from the photo samples above shot in both Night Sight mode and regular mode, the details retained to an unimaginable level. We've been testing it on the Pixel1, 2 and 3 and here's what the final images look like. "All you need to do is press the shutter button".
Previously, when faced with certain low-light situations, the Pixel 3 sometimes struggled to best phones with larger aperture lenses like the Galaxy Note 9, or top sophisticated low-light techniques like Huawei's impressive Night Mode, which really pushed the use of HDR photo processing when it debuted earlier this year on the P20 Pro.
Once Night Sight is enabled, the Google Pixel will automatically suggest that Night Sight be used when its about to take a photo in low light. You'll often be surprised! I'm personally not a fan of using LED flash on smartphones for clicking in low-lights as it would eliminate the natural element, but what Google does with the Night Sight is mind-blowing.
Compared to standard photos, Night Sight shots have significantly better exposure but without the typical high ISO noise that we would normally expect.
Google has employed some of the DSLR tricks on the Night Sight mode by partly adding an "S-curve" for tone mapping of scenes that are too dark for the naked eye. Though Google may end up having to play a game of cat & mouse, as ROM hackers have been able to modify imaging applications to get it working on third-party phones as well.