To focus one can only say that the picture was probably taken offenblendig and the focus was on height of the waves because the waves are much sharper than for example the sand. This creates a certain image depth, does not bother me and is from 1m distance anyway hard to perceive. Besides these, the recording resolution is definitely high enough, there are no pixels to detect.
The Hang is very simple if you previously exactly does worrying AND ACCURATE READING Lord VORREZENSIONIST- because it is recommended by the way of the manual departing.
Simply make about 5cm below the top of the small / lateral images ne mark; the images so lie down (face down - on the back, you can see about 1cm of motives) that the images are to each other properly; just connect the marks on all images; on the wall all the markers at an altitude Mark; the rest is yes then equal.
The manufacturer's recommendation, from 70 cm to use two hangers edge length does make sense, so is logically the upper edge meant - which is known here but only 40cm and thus extend the existing five hangers from. ;-)
So to me there (for the price) definitely 5 star and a strong buy recommendation.