Does anyone know the most effective way to wirelessly transmit files from the Canon 5D Mark III to a MacBook computer or other. When taking portrait style photos, it seems that it is much faster to print images if I can find a way to transmit them directly to my laptop allowing my assistant to print the photos.

Thanks in advance for your help!

There are two or three different solutions. The Canon approved way is to wirelessly tether using the very expensive Canon WFT-E7B Wireless Transmitter. The cheaper way is to use an Eye-Fi WiFi SD card. I have had good results using an 8GB Eye-Fi Pro X2 tethered to an iPad running the ShutterSnitch app.

Finally a more ingenious if odd-ball solution is to fit a Raspberry Pi single board computer with a WiFi dongle into a battery grip as described here Camera Pi – DSLR Camera with Embedded Computer (http://davidhunt.ie/?p=2641)

Thanks Nigel. This information helps. I saw the pricing to the Canon transmitter@ about $850.00. I comparison to what Nikon offers it's customers, this is ridiculous. I will research the Eye Fi card to see if this will work for me.