FYI...With iOS 9.2 you can use your lightning SD card reader and finally import and view pictures from you SD card on to your iPhone. Mine came in today and I uploaded my sd card from my game camera on to my iPhone. This was always possible on iPads but now works on iPhones due to the update.
I bought the USB 3 Apple Lightning Connector and it was very fast. Uploaded 250+ pics in about 1 minute.