I bought the viewfinder for my Nikon D7100 and will send him back. Unfortunately, he can not put light sealing on the display. For missing 2mm you should be able to push him to get closer. In addition, the angle between mounting plate and viewfinder is not really 90 ° but less. This has the disadvantage that it sits slightly askew. Upstairs there is therefore being Opaque, but you always fear that the right hard plastic scratched the camera. Especially if one takes him regularly and re draufsetzt I would do me as really thought and time should perhaps think about a small foam gasket.
Now I have allowed myself to almost twice as expensive Carry Speed VF-4 and have to say that it is worth paying extra. He's not quite as compact, but can be properly and completely fit tightly. He is also of the processing of clean and makes a generally higher quality impression.