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For Windows 10 Mobile many find it best to save pics and vidz to Internal since the write speed is faster. Helps the processing along. IMHO, turning off Living Images helps as well. I was very pleased with the pics my 650 took and I ran that setup. Have a look at what other users have shared fro their 650 camera and compare that to your samples: http://forums.windowscentral.com/mi...504-pictures-videos-taken-my-lumia-650-a.html
You might want to try some alternate camera apps like Camera360 Sight or ProShot. Also, don't forget about processing shots after they've been taken.