HI .I need some help about 32bit to 16bit

[K31264507iajj]

HI  ALL!! I  need your help~~

when I use  multiply my light to basecolor ,in 32bit,it's right. 

but when i make it 32bit to 16bit,there have problem.

i have no idea  about this ~

[K31264507iajj]

so ~~anyone here??

[Trevor.Dennis]

It's a while since I have used that, but from memory, it is not a one click conversion.  You have to make ajustments, and win back some contrast.  

It has just occurred to me that I am assuming you are using ACR to do the conversion?

[K31264507iajj]

NO~~I don't use that,should i?

[Trevor.Dennis]

Absolutely.  I have not watched this video, but Colin Smith is one of the two most trustable Photoshop channels on YouTube. (the other being The Photoshop Training Channel)