# VOXL TOF sensor has different FOV specs based on distance

Source: https://forum.modalai.com/topic/489/voxl-tof-sensor-has-different-fov-specs-based-on-distance
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: voxl
Posted: 2021-10-11 21:09:15 UTC by colerose
Replies: 1 · Views: 685

## colerose · 2021-10-11 21:09:15 UTC

It appears that the VOXL Time of Flight Sensor has different Field of View specs based on distance according to this datasheet:
https://docs.modalai.com/voxl-tof-sensor-datasheet/

Specifically, it appears that the FOV changes once the TOF sensor is "near field":
```
FOV (H x V)	117° x 117° (near field 100° x 80°)
```
I'm curious what defines near field and if this switch to 100x80 is instant or transforming from 117x117 with time and/or distance?

## Reply by Chad Sweet (ModalAI staff) · 2021-10-20 16:19:27 UTC

Those are the specs from the vendor, we don't have any more information, sorry. The intensity image is published in MPA so you could perform a calibration on it to find out more details.