How I can work points to an image in Illustrator for Screen Printing?

Hello, (I use Macromedia Freehand MX), I just recently download the trial illustrator, and my question is to know how to open points in Illustrator images for screen printing in freehand using the Halftone in Illustrator I've tried but is not the same as the finish is different and of very poor quality here is a sample as freehand and illustrator as stated in:
Look at the difference of points:
As you can see in Illustrator can only do that from the menu: Effects / Pixelate / Color Halftone... and you can not make the points more guys, not sharp as seen in the picture above and therefore the image does not get to see very well, while in freehand if you can manipulate the points from large fine to a point, points also can be made round, linear or ellipse and therefore may work better for screenprints and other designs that open nesecitan points at home.
What I'm interested to know if there is another way to work so that the image is sharp with the open items as well as in freehand.
No more I say goodbye to waiting for an answer, thanks

I still do not achieve the required result in Freehand give me the points, as you may see in the picture above, I need is to manipulate fine points as well as this:
illustrator and only managed this:
illustrator and only managed this:
As you can see the difference is very remarkable, the two images are worked in the same size.
I switch to illustrator but if I can achieve that result does not help me much, since I work in screen printing and printing and need to play with points, after that I love the program has many more things freehand.
PS: the freehand halftone used to make color separation images to full color with spots open in Illustrator is not like that.

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intensity a écrit:
I want to plot two points simultaneously on an image. I tried using IMAQ overlay point and IMAQ Light meter for point. But when I try to plot two points using either of these two VIs, I find not even one point is plotted. How to resolve this?If your image is zoomed out, the point size may be to small to allow a proper drawing of the point. Otherwise IMAQ overlay point works flawlessly...
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