Nikon's Capture NX2
Saving in any format (jpeg, tif etc) has NO effect on the NEF. The original unmodified NEF is always available (unless you delete it.)
You need to go through the tutorial or find an online guide if this is any indication. BTW CNX2 has been replaced by a free update, the name of which escapes me.
|Common Flashwing by digimania|
from canon dslr
|The Marilyn impersonator by Lee8282|
from Blowing in the Wind (Nature)