Camera Labs

Looking at my posts i saw i want to buy a NEX-7 mostly for the veiwfinder BUT how good is it when useing a manual focus lense such as Nikon or Leica???

When a NEX-7 or 6 has say a small Leica,Vogtlander or Jupiter lense fitted to the thin adapter,providing a camera as small as the Sony RX100 but MUCH faster to use how good is the veiwfinder at focusing????

My sony NEX5N is very good but on a bright day when focusing on somthing specific it can take a few seconds to be sure i have the focus i want,i have a FEELING a veiwfinder might be faster in choosing the best focus???

Dose ANYONE use the NEX-7 or NEX-6? beyond a moderaster saying he thought the NEX-7 "was rubbish" i havent seen a coment anywhere about useing either

Dose the viefinder help manual focus?Looking at a reiveiw hear i read "the shadows vanish in the veifinder"?? Dose that meen a NEX-non veiwfinder is better as it has a good screen & direct eye veiw