Since I am pretty much right by BigFoot Central (aka Sasquatch Land!) in Southwestern British Columbia and Northern Washington State, I've been TRYING FOR YEARS to get a CRYSTAL CLEAR HIGH RESOLUTION STILL PHOTO and VIDEO (even going as far as bringing along multiple Canon C700 GS cameras!) of said Sasquatch and/or UFO and.or Alien Entity! NOTHING! ZERO! I have NEVER seen or shot anything YET! Carl Sagan once said "Absence of Evidence is NOT necessarily Evidence of Absence", so I'm still OPEN to the ideas of Sasquatch, UFO's and Aliens...BUT.... I haven't seen anything yet OTHER THAN as BLURFOS (i.e. Blurry UFO's), Fluff-Squatch (aka Fluffy Blob of Fur in Photo) and ET-Squints (i.e. ET's needing Squinting into inky blotch on photo).
Harry... The aliens disable advanced cameras with EMP weapons that they shared with Sasquatch. Your only hope is to use primitive technology. 1980s style camcorder or 8mm film.