Since Google Camera and the Samsung Galaxy S5 can do 'bokeh', is the HTC One M8's second camera slightly redundant?
Apr. 18, 2014 at 18:53
"Bokeh" is just Depth of Field effects. Bigger Sensors and wider lenses have a more remarkable effect but it's an effect on every camera.
Here's an example from my LG G2
G2 DoF, notice the in focus can and the objects by the door are blurry.
The Galaxy S5's feature is a little weak from what I've seen, you have to make sure you're using the Selective Focus mode. I'm not 100% certain how it works but I believe it's bracketed exposures of different focus, 1 in focus 1 out of focus.
Google's Lens Blur effect on the other hand is extremely clever.
You take the photo then slowly move the device up whilst staying centered on the subject. This allows it to gather more information about depth and then apply some smart blurring.
You can read more in depth about it here
The M8 is like a combination of the 2 methods above. As it has 2 cameras it can capture depth information easily without having the user do anything additional. Then it will apply a blur filter over the pixels of the selected depth.
The M8 implementation isn't perfect but it's a nice feature. I think the 2nd camera may also offer up some interesting apps now that HTC have released the SDK.
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