Julian called in with a suggestion for for Larry in Prescott, AZ, who wanted to connect an external camera to his smartphone for use with an app called BeMyEyes that acts as a visual aid. Julian's idea is to either use an Android device for this, or to use a service called aira.io. This service works in conjunction with glasses that would be worn and identify what things it is seeing.
Chris has a granddaughter that wants to take professional pictures, but Chris doesn't want to spend much more than $500. For $600, Leo recommends the Sony Alpha a6000Mirrorless Digital Camera with 16-50mm Power Zoom Lens, which is an affordable body that leaves room for more lenses if the photography hobby gets serious. Leo also recommends the Nikon D3400 DSLR Camera 2 Lens Bundle, which comes with a broad range of lenses and a memory card.
The fastest way to do this is with the Apple Camera Connection Kit which Apple sells for $30. It's a connector that plugs into the iPad. It comes with two adapters -- one with a USB port, and another with an SD card reader. Darlene will be using the USB adapter, and will plug the iPhone 4's cable into that. The camera connection kit can be used for connecting other devices as well, so it is a handy thing to have.
This situation really calls for a "shotgun mic". A shotgun mic is a highly directional mic, and many of them are actually designed for digital SLRs like the Canon 5D Mark ii or 7D. It doesn't matter how close the subject is, it will just capture anything that's directly in front of it. There are a couple options to consider here.