F.A.Q.

What are the differences between the charts ?

There are 3 charts made to calibrate spherical optics: the YOTTA chart, the EXA chart, the TERA chart. Each size is different. They all have the same drawings distributed symmetrically on their surface with the same print quality. The 3 charts have the same technical characteristics and options: mirror, ColorChecker®, magnetic zones, spirit level.

The Peta chart is used to test anamorphic optics.

The Mega chart is a verification chart. It does not allow complete testing of optics and professional cameras.

How do I know which chart I should choose?

Several criteria must be considered:

– Type of optics being tested

To test the anamorphic optics, the choice is simple because there is only one model, the PETA chart of dimensions 158×72 cm. There are 3 sizes of charts that can be used to calibrate spherical optics: TERA (55x90cm), EXA (73x125cm), YOTTA (92x158cm).

– Type of camera being used (often related to the type of project being filmed: feature film, commercials, videos, documentaries, …)

The YOTTA chart is better suited for larger 8K full frame with sensors of a diagonal greater than 40mm, because it covers the entire image at the optimal test distance. The EXA is ideal for 4K / 6K cameras with a sensor of a diagonal around 30/35 mm. The Tera is made for smaller cameras.

– Space you have available to test your cameras

Sometimes, it is better to choose several smaller charts over one large one.

Your budget

Why are the P.A.T. charts more expensive than their competitors ?

P.A.T. charts are the charts of the future and their competitors are of the past. For the first time on the market, here are charts thought by Men of Action for Men of Action. P.A.T. charts have technical elements that competitor charts do not have which will save your time and energy.

P.A.T. charts are also the first and only to offer high printing quality. Superior to that of an optical projector, the resolution is the best on the market. This explains their higher price. It depends on how you see your business: using cameras and optics of yesterday or using the latest technology?

How long do the charts last ?

The ink is protected by a special film. If used indoors and without direct sunlight, the contrast of the drawings will not be much affected and will always give successful camera tests. Your accessories and other technical equipment (aluminum frame, mirror, etc.) will last depending on how well you take care of them.

Do I get a discount if I buy more than one chart ?

Yes. The more charts you buy, the higher your discount regardless on chart models ordered.

Can I customize my chart with my company logo ?

Yes. There is a place designed for this. In the accessory kit, you will find the magnetic zones that will let you personalize your charts. You will need to send us your logo in vectorized format .pdf or .eps or pixelated .jpeg or .png 300 dpi, 10 cm minimum width.

Why are charts and options sold seperately ?

The purpose of the chart and its technical attributes is to optimize the camera tests: print quality, matte coating, magnetic back and aluminum peripheral frame for perfect flatness.You will not see results of the different options chosen during the technical results of the camera tests. They are there to help personalize and save time.

Can I upgrade my charts later?

It is not possible to change the charts once ordered and received. The different options (mirror, ColorChecker®, bubble, annotated annotation zones) must be specified at the time of ordering. For example, the areas on the charts are carefully magnetized by us if you choose the annotation and customization areas to be magnetized. Otherwise, these surfaces will be white and simply covered with the protective film of the test pattern.

Do I need to buy all the accessories that go with the charts ?

No. You can choose the accessories you want. However, for the best camera tests, we recommend the complete kit of accessories and offer it at a reasonable price when bought in addition to the chart.

What if I want to order more than one chart but do not want to have a ColorChecker® for all charts.

We also offer the accessory kit without ColorChecker® which is less expensive. When you purchase a complete kit of accessories, we offer you the fixing pellets of the ColorChecker® on your next 3 charts on the same order.

How do I hang my charts on my camera test bay wall ?

The P.A.T. charts were made for their easy utilization and for their design of space. There is no need for adhesive or screws because both sides are magnetized. The magnet is strong enough to hold the chart on the wall, yet it is also possible to move it easily. About 1/3 of the surface of a chart is attached to a metal plate. Then, you can either have a metal wall or we recommend painting the wall with magnetic paint.

Can P.A.T. show me how to use the charts ?

Of course! We are at your disposal to answer all your questions. You can contact us by mail pat@pat-acc.com or by phone at +33 (0) 6 60 47 58 13. You can also send us a message via our CONTACT page.

What is the delivery time for my charts ?

It takes between 2 to 4 weeks to ship an order. Depending on your location, transportation can take between 1 to 6 days.

REIFERENCE SAS

5, chemin la Grand Pièce
13600 Ceyreste
France

Phone : +33 (0) 6 60 47 58 13
Email : pat@pat-acc.com

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