Anamorphic lenses charts

The very 1st sharpness charts specially made for 8K cameras ... and more.

The very 1st sharpness charts specially made for 8K cameras and more

Prêt À Tourner offers the world's first range of optical charts with an unrivaled, very high definition printing for this type of product and designed to offer you maximum comfort and speed of execution, thanks to its numerous adjustment tools.

Anamorphic PETA Chart 2.0 73x158 cm by Prêt À Tourner
Anamorphic PETA Chart 2.0 73x158 cm by Prêt À Tourner
Sharpness calibration chart

Sharpness calibration chart

Time saving

Each P.A.T. camera sharpness chart has the indispensable tools and aid to realize the best camera test. Cameras that have grown increasingly sophisticated and sensitive literally shorten the length of your day in test. Our charts are made to make you gain time, comfort, and efficiency. You don’t have to take the chart off the wall; everything you need is here.

Comfort and aesthetics

In addition, P.A.T. charts have a sleek and elegant design. All the tools are based on technology but the materials and designs that make up the charts have been thought to highlight your business. Above all, your printed logo on each chart makes them fully yours on your company premises. They are useful and beautiful charts to create beauty. Our main concern is ultimately the same as yours: creating beautiful pictures to make beautiful movies.

Technological advance

But this is not the only thing that makes the Prêt à Tourner Charts so unique. We offer you the possibility to get a real technological head start on the test of your cameras and lenses. As a matter of fact, we found the way to print the very small to allow you to print 250 pairs of lines per millimeter on your sensor, filming the entire chart in full-frame. We are the first one to ever reach such an impressive high-level of printing on formats 150 cm wide. As we speak, there is no other sensor accurate enough to reach this definition.

They trust us...


All our workshop charts have the following technical characteristics. All these characteristics - incredible fineness of the printing, different targets, integral magnetic support helped by the aluminium contour - have been thought out and combined with a single goal: the optimization of your calibration test.


200 pairs of lines per millimeter

The unrivaled printing quality for such kind of large format offers, for the very first time, the opportunity to print up to 250 line pairs on the sensor, filming the entire chart in full-frame (Yotta chart). No other sensor has been able to reach that definition so far!


Perfect anamorphosis

Target patterns are drawn in order to check and analyze the perfect anamorphosis of your lenses: targets for anamorphosis 2.0 or targets for anamorphosis 1.5 according to the selected PETA chart pattern.



The arrangement of the targets enables a very precise analysis of the lens anamorphosis. Find uniformly arranged black and white cross lines: circular and linear, horizontal, vertical, and diagonal.

Geometric Deformations

The chart allows the materialization of geometric deformations through the tests of the “plumb line” and the “checkerboard”. In addition, the checkerboard is composed of 18% neutral grey areas. Why deprive yourself of such convenience?

Magnetic Support

The entire support of the chart is magnetized to facilitate the manipulation, using a metallic wall and even magnetic paint. This magnetic support at the back is your assurance of the immediate flatness of the chart.

Aluminium Corner

Our charts are fully protected by an aluminum frame. Light and rigid, it helps the manipulation during the tests and prevents bending over time.

Anti-reflective coating

The mat coating of the charts protects the printed ink and avoids any light reflexion that could disturb the test. Most of all, you can write on it!

Neutral Grey

The checkerboard consists of 18% neutral grey areas.


As we speak,, we have 2 anamorphic charts :

  • PETA Chart 73x158 cm : Targets for anamorphosis 2.0, expanded for a full frame 2.39.
  • PETA Chart 92x140 cm : Targets for anamorphosis 1.5.

PETA Chart 73×158 cm anamorphosis 2.0

Anamorphic PETA Chart 2.0 73x158 cm by Prêt À Tourner
Anamorphic PETA Chart 2.0 73x158 cm by Prêt À Tourner

PETA Chart 92x140 cm anamorphosis 1.5

Anamorphic PETA Chart 1.5 92x140 cm by Prêt À Tourner
Anamorphic PETA Chart 1.5 92x140 cm by Prêt À Tourner


PETA Chart 2.0PETA Chart 1.5
Dimensions (cm)158 x 73 x 1,3140 x 92 x 1,3
Dimensions (inches)62 x 28 x 0.555 x 36 x 0,5
Weight5 kg / 11 lbs5 kg / 11 lbs
Optimum print definition4 pairs of lines / mm4 pairs of lines / mm
Horizontal Linear Targetsyesyes
Vertical Linear Targetsyesyes
Diagonal Linear Targetsyesyes
Magnetic supportyesyes
Anti-bending aluminium frameyesyes
Anti-reflection coatingyesyes
Neutral greyyesyes
Magnetic personalization zone (optional)yesyes
Magnetic annotation area (option)33
Magnetic gradation and grey scalenono
Bubble level (optional)yesyes
Centering mirror (optional)yesyes
ColorChecker® (option)yesyes


You have the opportunity to supplement your charts with many options. These options are designed to save you precious time and comfort during your optical tests while reinforcing the identification and image of your company.

We propose the entirety of these options in 2 kits that you can find in the shop by ordering your chart:

  • A complete kit including all the options : customization on all the annotation areas by adding your company logo, magnetic annotation areas (technical information, neutral grey, grey scales for the Yotta, optical calibration scale), bubble level, centering mirror, ColorChecker® Classic.
  • A kit including all options except the ColorChecker® Classic. This choice can be financially interesting if you wish to order several charts. Colorimetry tests only take a short time in a test day and one colour chart can be enough for several test units.


You have the possibility to personalize your chart thanks to the magnetic annotation area provided for this purpose.

Magnetic Annotation Areas

Write down useful and indispensable technical information on the magnetic writable and erasable annotations areas. This tool shields the entire chart against time.

Optical Wedge Scale

The optical wedge scale enables you to evaluate and quantify the sharpness of spherical and anamorphic lenses. It gives mathematical data of the sharpness to facilitate technical exchanges between users, such as camera assistants and camera technicians.

ColorChecker® Classic

Digital cameras may require some color tests. You have the possibility to add a ColorChecker® Classic using the Velcro® pads in the middle of the chart without removing it from the wall.

Magnetic mirror centering aid

Here is a very smart and useful aid to win time on your camera test! The mirror is handy when it comes to placing the chart perfectly parallel to the image plane in a matter of seconds.

Level Bubble

You have the possibility to add a very useful bubble level on the top of the chart.

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