# 16 Bit Grey for B&W scanning **URL:** https://forums.negativelabpro.com/t/16-bit-grey-for-b-w-scanning/572 **Category:** Feature Requests **Created:** [August 31, 2019, 12:56pm UTC](https://forums.negativelabpro.com/t/16-bit-grey-for-b-w-scanning/572 "2019-08-31T12:56:08Z") **Posts on this page:** 1 **Showing post:** 7
### Author: ![nate](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.negativelabpro.com/nate/32/4_2.png) [@nate](https://forums.negativelabpro.com/u/nate) #### Post date: [April 24, 2020, 1:30pm UTC](https://forums.negativelabpro.com/t/16-bit-grey-for-b-w-scanning/572/7 "2020-04-24T13:30:37Z")
Hi guys, sorry for the late reply. I have added a way to do this (16-bit single-channel mono RAW DNGs), but you have to follow an extra step from the post below to linearize the file (because DNG camera profiles only work on typical 3-plane files). > [@Using Negative Lab Pro with Vuescan RAW DNG scans](https://forums.negativelabpro.com/t/using-negative-lab-pro-with-vuescan-raw-dng-scans/25/44): > > Hi @thobias and all - Just an update here: For whatever reason, there doesn’t seem to be a way to have custom DNG profiles for single color-plane files. The DNG spec is always look for 3 or more color planes (for example, R/G/B). This appears to be true even for monochrome digital cameras, like the Leica M10 Monochrome. The profile in Lightroom will always show “Monochrome” with no other options, and the “standard” Adobe tone curve will be built in. That said, I’ve built a preset that will “u… --- _[View the full topic](https://forums.negativelabpro.com/t/16-bit-grey-for-b-w-scanning/572)._