I'm very satisfied with the device,
the well-known battery cover is really a bit weak in the "lock"
there should be open and the close of the battery compartment really careful not to accidentally cancel what.
Sorry, no German instruction manual, but you can not go far wrong. When in doubt, just try and find out.
Otherwise great part, is recommended. Not worth the 3- or 4-fold output only so Nikon has it.
One more info plugged on the edge .. Have the device just once to my older D40 and tested,
With this work the flash is not so good, there are often black images with this because lightning
and camera can apparently do not always agree on the same trigger point.
But never mind, is indeed not provided for this model.
Hope I could help someone.
Especially people with a D7100 which are also uncertain / were whether it will work; D
