Martin Exterior Projection Pro Compact handleiding

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Handleiding

8 Martin

Exterior Projection Pro Compact User Manual, Rev. A

Gobo indexing angles and precise gobo indexing

Mechanical tolerances mean that there can be small changes in the indexing angles (i.e. rotational

angles) of gobos when you rotate them or change gobos and then return to the initial indexing angle.

To compensate for these mechanical tolerances the fixture always indexes from a clockwise direction

(as seen when looking at the projection).

No matter how carefully we engineer and manufacture Martin products, all lighting fixtures are subject

to mechanical tolerances. These will often cause very small changes in the indexing angles (i.e.

rotational angles) of gobos if you rotate or change gobos and then you return to the initial gobo

indexing angle. To reduce the visibility of any change in indexing angle, we recommend that you avoid

programming very tight gobo mapping in multiple fixtures. For example, avoid aligning a vertical or

horizontal line in gobo projections from two or more fixtures.

Note also that slow fading from one gobo indexing angle to another is not always perfectly smooth.

You can compensate for this by using short fades or snapping to indexed angles, or you can program

a blackout cue prior to the indexed gobo position.

The offsets (changes in rotational angle of the gobo projection) that apply to the Exterior Projection

Pro Compact are as follows:

• Maximum offset: 0.02 rad (1.15° or 30 mm offset at a beam diameter of 300 cm）

• Typical offset at individual gobo indexing or after fixture reset < 0.0134 rad (less than 0.77° or

20 mm offset at a beam diameter of 300 cm）

• Typical offset at change between gobos: < 0.0134 rad (less than 0.77° or 20 mm offset at a beam

diameter of 300 cm).

Animation wheel

A gobo animation wheel module is available as an optional

accessory for the fixture. The ‘Radial Breakup’ animation wheel

supplied with the module is designed to be used in combination

with a rotating gobo and color filter to create a moving image of

flames, grass blowing in the wind, water, etc.

Adjust the speed of the gobo rotation, the speed of the animation

effect and fixture focus to give the most realistic animation.

The animation wheel module is supplied with the animation wheel

packed separately to protect it from transport damage, so the

wheel must be fastened to the hub in the module before use. See

the Service and Maintenance chapter at the end of this User

Manual for instructions.

Once the animation wheel module is installed, the supplied Radial

Breakup animation wheel is always present in the fixture’s

projection. If you would like to be able to remove the animation

wheel from the projection, a ‘Radial Breakup’ animation wheel with

an aperture that gives an open slot (see drawing on right) is

available as an accessory from Martin by ordering

P/N MAR-90560271 ‘Animation wheel w open hole - set of 5’. The

wheel with the aperture is supplied in sets of five. It is identical to

the supplied wheel, apart from the aperture.

Please use the instructions in the Service and Maintenance

chapter at the end of this User Manual as a guide if you install the

animation wheel with the aperture.

‘Radial Breakup’

animation wheel

‘Radial Breakup’ animation

wheel with aperture

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