The Lorentz transformation gives the relationship between the time and space coordinates of two inertial reference frames in relative motion.
As such, it is coordinate length contraction and coordinate time dilation that results.
Thus, in SR, observing (or measuring) length contraction does not mean to photograph length contraction. Rather, it means recording events: "the front of the rod was at this location at the same (coordinate) time as the rear of the rod was at this other location; the rod's (coordinate) length is thus..."
From the article "Photography in Special Relativity":
Observation vs Photography
In Special Relativity there is a very specific meaning to the word
observer. An observer is one of an infinite collection, in space and
time, of robots whose sole task in life is to record the time and
location of each detected event. When we say that an observation was
made we simply mean that the space and time coordinates of an event
have been recorded.
A photograph is a record of all of the photons that were received at
the focal point of the camera at the time the photograph was taken.
These are fundamentally different processes and they give us very
different information about the universe.