| dlk30341- Please show the entire screen...
For the extrude three times if you zoom in on the screenshot, look at the yellow line on the extrusion. I just extruded, click, extruded, click, extruded, validate.
Purple Mango - Just select points(F4) in the two loops that will form the shape of your lens housing(don't use loop select), if you zoom in on the screenshot you can see I have one point on the left and one on the right selected. The use the scale cube on the universal manipulator to keep the movement on each symetrical. I then dropped down to the next two points and repeated until it looked like a nice arc.
Then switch to face selection(F2) and select the polys shown in the screenshot.
For the tesselation, when you create a cube you drag out the radius, then click and the tesselation input will appear in the properties palette. It will be toward the bottom so try minimizing the DG and scene palette then you should be able to see it.
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