Bit-depth of RAW/DNG files in Lightoom 5

According to the Canon website (Canon U.S.A. : Support & Drivers : EOS 5D Mark II), my EOS 5D Mark II produces a 14-bit RAW file, yet when I bring it into LR5 (as a .dng), the exposure slider goes only from -5 to +5 (10 stops); why doesn't it go from -7 (or -8) to +7 (+8)?

PediEyeDoc wrote:
According to the Canon website (Canon U.S.A. : Support & Drivers : EOS 5D Mark II), my EOS 5D Mark II produces a 14-bit RAW file, yet when I bring it into LR5 (as a .dng), the exposure slider goes only from -5 to +5 (10 stops); why doesn't it go from -7 (or -8) to +7 (+8)?
Bit depth has nothing to do with dynamic range assuming that's what you're referring to with the +/- 'stops'.
There are very few true 16-bit capture devices that we can afford. Adobe considers anything higher than 8-bits per color to simply be referred to as "16-bit" even if they are not. It's pointless to show 12 vs. 14 bit and so on, the real factor is, do we have more than 8-bits per color to edit with?**
In fact, even Photoshop doesn't use 16-bit but rather 15+1 bit, has since day one, LR is probably the same, not that it matters.
**The Bit-Depth Decision | DigitalPhotoPro.com

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