Maybe I can just tape a magnifying glass to the front or something?
Your 1D X came with a body cap. Take it off, drill a small hole (slightly less than 1mm in diameter, a 1/32" drill bit would work) right through the first n in Canon, then put it back on. You'll be good to go.
Of course, you won't be the first to do that with a 1-series body.
@ Neuro. You need to be very careful when you do this, otherwise, you might create "light leak"
Yep, and I must have missed the "take it off" part because now I have a big hole in my mirror as well. Talk about a light leak