Photo shutter
The purpose is to simulate a shutter of a camera. This example is pretty long to achieve. We 'll use mask and shape. We 'll use effects : Transform, radial gradient. We 'll first create objects, then effects.
Remark :
At first, I had used a complex mask to build a gill, then an effect and it was fine.
Unfortunately, the other gills disrupted themselves mutually.
The solution I propose is therefore defined from a transparent gill which virtually 'll give a simplest design of the whole project.
Why making things complex if we can do more simple? It's up to you.
Download some files beforehand. 
⇒ see animation ⇐
Creating Mask
1 - Set up width, height and background color (000066).
'Frame Rate' : 35 Width : 480 Height : 480
2 - Draw a Rectangle ( 000060 ) which size is mentioned hereafter :
3 - Draw a circle with the same color
4 - In 'Outline', SHIFT being in a down state, select the 2 previous objects, then CTRL G. You'll get a pierced rectangle. It 'll be the mask. Name it MasqueFond
2 - Creating gills
Gill 1 :
- menu Insert / Image : insert LameObtu.gif you downloaded.
- Set image as mentioned.
Other Gills : Copy the previous image, translate and rotate as mentioned. Use tool 
Gill 2 :
Gill 3 :
Gill 4 :
Gill 5 :
Gill 6 :
Gill 7 :
Notice that the rotate angle correlates about to 360° / 7
3 - Creating a spot
Draw a circle same as the hole, but apply a radial gradient of color.
Left Index CCFFFF Right Index 000066
3 - Creating a trigger
Using the downloaded images, draw a button in the bottom right of the scene.
4 - Creating Effects
- In 'Outline', move objects as following :
( use tools 
)
- Here is what you'd yield at last
- Select Add Effect , Place in frame 0 of the specified objects.
- At frame 1 of Scene, select Add Action , Stop
- At frame 2 of every gill, you gonna set an effect Transform.
Pay attention : ( CCW 60° pour tous )
LameOBTU 1
LameOBTU 2
LameOBTU 3
LameOBTU 4
LameOBTU 5
LameOBTU 6
LameOBTU 7
