I will be shooting a wedding this summer,
Jewish, with a trellis-arch used (officiant
and couple underneath, the usual large number
of people around it blocking any possible
video view into it of the "action") in a dark,
large Victorian chapel... An option: clamping
a small video camera onto the rear peak of
the arch, up-side-down, with a fisheye on it.
Inverting the image is easy in Premiere, but
inverting it while retaining the original
image quality took a bit of trial-and-error.
Success! The formula: in the "Motion"
tool, rotate the image 180 degrees, but
set the "0" positions for "0" and "0.5" - then
go to "Video", "Field Options" and select
"reverse field order". Voila! ;-)