# Tracking Camera's Pixel and Lens Sizes

Source: https://forum.modalai.com/topic/1624/tracking-camera-s-pixel-and-lens-sizes
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: voxl-cam
Posted: 2022-12-15 16:52:23 UTC by Troi
Replies: 1 · Views: 725

## Troi · 2022-12-15 16:52:23 UTC

Hello,

I am searching for the pixel and lens sizes of the tracking camera. Modal AI's [tracking camera data sheet](https://docs.modalai.com/M0014/#voxl-tracking-sensor-datasheet) says that the lens size is 1/3.06 inches. But the data sheet for the camera sensor does not work. I looked at other sources for the pixel size (including [ArduCam](https://www.arducam.com/product/arducam-ov7251-mipi-0-31mp-monochrome-global-shutter-camera-module-raspberry-pi/) and [OmniVision](https://www.ovt.com/products/ov7251/)), and they say the pixel size is 3 μm x 3 μm.

Are the lens size (1/3.06 inches) and pixel size (3 μm x 3 μm) correct?

## Reply by Chad Sweet (ModalAI staff) · 2022-12-15 16:57:34 UTC

just updated datasheet link to https://www.ovt.com/wp-content/uploads/2022/01/OV7251-PB-v1.9-WEB.pdf
thanks for pointing out