---
title: Zeiss eXtended data
slug: ncam-reality/zeiss-extended-data
createdAt: 2021-09-16T02:14:16.000Z
---

## Overview

Zeiss lenses utilising the eXtended data protocol can be used with the Ncam system.  As the eXtended protocol is an extension of the Cooke /i protocol the two methods share many similarities and the encoder cable provided by Ncam is interchangeable between the two.

:::hint{type="danger"}
### Firmware Requirement

When using 2023.0 versions of Ncam Reality, the Zeiss XD lens must be using at least version 1.7.1.  If using Ncam Reality 2023.1 and later, then earlier versions of XD firmware are supported
:::

### Required Parts

Ncam provided /i serial cable

Zeiss eXtended data lens featuring a 4 pin lemo connector

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### Compatibility

The eXtended data protocol is only available on the Mk2 platform

### Instructions

Inside the preferences of the Ncam Reality Full UI set the encoder type to "**Zeiss eXtended data**"

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Connect the Ncam /i cable to the **RS232 **port of the Mk2 server or connection box, connect the 4 pin lemo end of the cable to the eXtended data port on the body of the lens