DIN formats can not be adjusted!

Unfortunately, in this stapler not set the standard DIN formats. The paper stop engages all 2mm, intermediate positions are not possible. Will, for example, fold several sheets of A5 to A6 booklet, so you would have to stop to 105mm (210mm / 2), provide. One can make the stop but only 104mm. This means that one side of the sheet to 1 mm is too short and the other being around 1 mm long. If you then fold the sheet is a page about 2mm which is then anything but beautiful.
Here is an overview of the design-dependent variations in the different paper sizes (details always for horizontal, ie that it is brochure, which then creates the next smallest DIN A format in portrait orientation. For example: A4, cross folded, produces a DIN A5 Portrait published separately):

A6: Length = 148mm, required paper stop: 74mm, deviation: 0mm
A5: Length = 210mm, required paper stop: 105mm, deviation: 1mm
A4: Length = 297mm, required paper stop: 148,5mm, deviation: 0.5 mm
A3: Length = 420mm, required paper stop: 210mm, deviation: 0mm
A2: length = 594mm, required paper stop: 297mm, deviation: 1mm

This means if you want to create from DIN A5 sheets DIN A6 booklet, (that's probably the classic format for manuals of cameras or the same ones that you want to take) then you are not able to clinch this exactly in the middle !! !

Otherwise, the stapler is very massive, and the brackets of 40Blatt 80g paper is not a problem if you have the correct brackets. But what does it help if you precisely the bracket next to a millimeter sets?

Since the paper stop is an absolute bad design, there is only one star !! One could stop indeed make for Infinitely adjustable with a set screw and an accurate scale, but that Währe in production probably 1Euro expensive. It Währe even better to have a stroke as with any punch which engages only in the desired formats. However, a fixed pitch between the grid levels are in vain.