Steve just became a father and wants to know how good the iPhone is for a camera. Leo says it does the job, but it's not going to be as good as a pocket camera or a DSLR. Since Ken is a Nikon user, he's going to want to stay in the family. Steve was looking at a D7500, which Leo says is good, and he was also considering the EOS 80D. Leo says the 80D is nice too, but that's Canon, so it would use different lenses.
Gareth recently had his camera equipment stolen. Now he's using insurance to replace it and wants to know what Leo recommends. Should he get the Canon 70D again? Leo says the opportunity to start from scratch is good.
David has a Pentax K5 camera, which has an APS-C sensor. Should he get a full frame sensor instead?
APS-C sensors are usually used on less expensive DSLRs because of their smaller footprint. Even though the APS-C may have the same number of pixels as a comparable full frame sensor, that's the difference. A full frame sensor will have better low light sensitivity. If he doesn't notice the difference, then it really isn't an issue for David.