I have a macair. I have a nightvisioin igen 2020 that has a video out that can be captured or just viewed. http://www.igen2020.com I have read someones review that did this, and he said he is just using this http://www.amazon.com/GSI-RCA-To-US...&keywords=composite+video+out+to+usb+in+cable NOw that I have that piece and connect it to the video out on the igen 2020 the computer does not recognize it. There is nothing on the IGEN to say - the source or connect to the computer. BUT is there something on the macair that I can say to recognize it from the USB. I was trying to avoid buying the 40 - 70.00 video capture as this is the first time and wanted to try it first without spending that kind of money. the whole goal is why someone is looking throught the monocular - it would be displaying on the screen so everyone can see. Any suggestions on how to get the Mac to recognize the unit with the video out coming out of the night vision and hooking up to the usb.