It's been a long time since I updated my APS-C DSLR feature guide. Other than correcting that the 7D has no headphone jack and adding which cams have no hot shoe center
Nicama V2 XLR Female to 3.5mm TRS and TRRS Adapter with Phantom Power for Shotgun or Condenser Microphones, Mic Preamp for iPhone,iPad Smartphone Tablets and DSLR Camera: Amazon.co.uk: Musical Instruments & DJ
Recording Audio with a Canon 5D Mark III - Wistia Blog
SR-M3 On-Camera Shotgun Microphone with Headphone Output & 1/8" (3.5mm) Mic Input for DSLR, Mirrorless & Video Cameras | Saramonic
Review of new "Beachtek DXA-SLR" XLR adaptor for HD-DSLR cameras | Philip Bloom- Blog