1.)What is the difference between a Full Frame Camera and a Crop Sensor?
The difference in full frame camera compared to crop sensor is that the full camera shot gets the whole image and the cropped shot doesn't. The cropped shot is more zoomed in. 

2.) What are five advantages of the 6D compared to a T3i?

1. Built in wi-fi photo transfer review 

2. 20.2 effective megapixel full-frame CMOS sensor 

3. 1080p hd recording 

4.DIGIC 5 + image processer 

5. Center point auto focus 

3. What makes the autofocus of the Canon 5D Mark III better than that of the 6D?

• The EOS 5D Mark III has a 61 point AF array with up to 41 cross-type AF sensors (depending on the maximum aperture of the lens mounted on the camera). Along with the EOS 1D-X, it has Canon’s most advanced autofocus system.
• The EOS 6D has an eleven point autofocus (AF) array with one cross-type AF sensor in the centre.
• The Auto focus on the 5D is similar to the one of the 1D which is really good. The 6D Auto focus is good, just not as good as the 6D. 

Once you have had a chance to answer these questions, you can have 10 minutes to take a few photos with the 6D.