# How to use a ruler with a Xrite ColorMunki Photo or an Xrite I1 Studio

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Warning This feature is no longer supported from version 1.11.8
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### 1) Introduction

Coraye allows to add new possibilities for the use of your I1 Studio or ColorMunki such as:

1. You can customize the number of patches to print.
2. You can choose the number of grayscale to optimize grayscale images.
3. You can create a calibration before the characterization.
4. You can print the charter in one go
5. You can pick a color
6. You can capture a light
7. ... and you can use a ruler to read small patches...

![](/files/-Lre3oAKyhN4RBxm5SB0)

### 2) Reading with a ruler

To use the I1 Studio with a ruler, you have to set the option "With ruler (smaller patches)" = "Yes"

![](/files/-Lre7XRC4C1L94nBqZ3b)

The generated target will be the same as the I1 Pro target.

![](/files/-Lre7aai4MQAzwUPBVAD)

### 3) Reading without ruler

To use the I1 Studio without a ruler, you have to set the option "With ruler (smaller patches)" = "No"

![](/files/-Lre7fYwNaRUAuCcIHDN)

The generated patches will be bigger to allow the reading of the target without ruler.\
As you can see, you will need more sheet of paper to print your target.

![](/files/-Lre7kpJV5iage5OBANz)

### 4) Making the ruler

![](/files/-Lre7zhENOLdXK4yd9P9)

1 - You have to download the drawing of the ruler in  Adobe [illustrator format](https://mega.nz/#!FmQDXKyA!POeWHYpTv1Wex_jPCwY92pcXWIAx8UesebgNfpadv-8) or in [pdf format ](https://mega.nz/#!FjRTiaZZ!DMItf6zEJptlKociLyoRXnUv_5FdAtSRzqii4O7RQag)(with the cut contour)

![Preview of the ruler](/files/-LreAbJxFeEo2g8J6woU)

2 - Then print it on a thin material like a sheet of paper or a thin PVC.

3 - Paste double-sided tape on a guide

4 - Paste the guide under the outline, as shown in the picture below

![](/files/-LreFrWLsTfDjlQFTt5E)


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