Three units in a row, wide
Repetition makes inconsistency visible, and parallel shadows make a row read as deliberate.
Three of the same product, in a row, on a seamless ground. This is the frame that proves a set is a set.
Repetition does something a single hero cannot: it shows the product from slightly different angles at once, and it makes any inconsistency between units immediately obvious. If the label sits differently on the third can, a viewer sees it without being told what to look for. That is the point of shooting it.
Hard light from one side again, so the three shadows fall parallel. Parallel shadows are what makes a row read as deliberate rather than as three objects that happen to be near each other.
The centre unit sits slightly forward. A perfectly straight row is static; a small break in the line gives the eye somewhere to enter.
Where a wide frame gets used
Sixteen by nine is a website header, a YouTube end card, or a wide placement in a display network. All three want the same thing: the product on one side and clear space on the other for a message. A wide frame with the product centred has to be cropped by whoever uses it.
