# Reflectance by Phantom4 Multispectral

**URL:** <https://community.pix4d.com/t/reflectance-by-phantom4-multispectral/13536>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Tags:** multispectral\
**Created:** [July 3, 2020, 9:05am UTC](https://community.pix4d.com/t/reflectance-by-phantom4-multispectral/13536 "2020-07-03T09:05:59Z")\
**Posts on this page:** 1\
**Showing post:** 12

<div class="post-metadata">

**Author:** ![bert](https://avatars.discourse-cdn.com/v4/letter/b/9e8a1a/32.png) [@bert](https://community.pix4d.com/u/bert)\
**Post date:** [March 29, 2021, 10:54am UTC](https://community.pix4d.com/t/reflectance-by-phantom4-multispectral/13536/12 "2021-03-29T10:54:42Z")

</div>

Hi all,  
Let’s assume we get the correct factor values (from parrot or lab calibration) for using the parrot sequoia calibration target in our DJI P4 MSP processing. Can you explain how this can be done automatically, without the need from us manually to type in the reflectance factor value in the radiometric calibration window? At the moment the calibration target is automatically selected and also the light blue rectangle is drawn (so it is detected) but the factor values are missing.

---

_[View the full topic](https://community.pix4d.com/t/reflectance-by-phantom4-multispectral/13536)._