Justin wasn't protected by a camera lens, Collin was. Justin was protected by a ghost.

Seeing from glasses is seeing it directly.

As @Stxrannx said

He was looking through several lenses and wasn't actually seeing the thing directly, it wasn't through his eyeline, when you look through a camera you are looking through the lens, it is a little distorted.

Then how did Harry not die?????????

From wiki:

Wearing glasses will not protect a person from the fatal effect of the basilisk's stare, because glasses still allow one's line of vision to connect directly and clearly with the serpent's eyes, unlike looking in a mirror or through a camera

@HP and Marvel

Harry never looked directly at the basilisk's eyes. Also, Fawkes already damaged it's eyes to have any affect on Harry.

Oh

Also, as noted, this isn't the best place for your hello's (in response to deleted posts).

Maybe she was putting them back on\what Phillip Groenen said.