I've never had a digital proyector in my life, nor planning on buying one for the time being. However, I'm fixing some 400 wedding files to be projected in a venue. I am telling my client to rent a projector with 1080p X1920 of native resolution.
I assume those are the numbers for a horizontal file. What happens with vertical files? Will the projector give 1920 on the other axis too?
If so, shouldn't these projectors be advertised as 1920X1920?