First, you will need a Mac running OS 10.4.9 (Tiger) or higher. Your Mac will recognize the microscope. You won't need the included CD (which has only Windows software). Instead you will be using preinstalled imaging programs on your Mac such as Photo Booth and iChat.
Next, plug the camera into a port on the computer, not the keyboard, as for desktop Macs the keyboard port does not deliver enough power to run the camera. Do this before turning on the Mac. It is important that the microscope be connected first.
Now locate the imaging software (we recommend Photo Booth) on your computer and open the program. Select the “Camera” tab in the program’s window, then select “Celestron Microscope” as your camera. The microscope should now be transmitting an image to the Photo Booth screen.
NOTE: When using your microscope on a Mac with a native imaging program like Photo Booth, the shutter button on the top of the microscope (if it has one) is disabled. To take a snapshot or video, select the proper icon in the program with your mouse.