Hello, via haptic (installation very easy, fits perfectly), processing (robust) and viewfinder (bright and clear, 100% or 2x magnification) I must not say much. That was very well discussed. What you should do this part, though? - For shooting at ground level: who has already made photos with wide angle from the ground (flowers look like trees, about the Sun Star, and many others) will agree: Without angle viewfinder will not do! Except with folding screen - but that did not some Nikon cameras. - For shooting from a tripod - it is much more practical, seen from above in the viewfinder, as a semi-kneeling with verrenktem neck from the tripod to see in the viewfinder to: Looks stupid, is quite strenuous in the long run ... you know what I mean. - For Aufnamen with self-timer: When looking at the camera on a wall or a table to places do without tripod, or for example, to make a family portrait - as well as helping the angle viewfinder! uva I have a part in principle in my camera bag: it weighs nothing, and for me is now always indispensable! Some will say: that goes well with Live View. Schon - but better with the angle finder to worlds! Check it out! From my side: full purchase recommendation! H.Hellwig