With the arrival of grandson who is a photogenic natural, complaints were made about there being no equivalent pics of son. Not true; found a few negatives from early 70s to scan, then while at it some earlier colour slides jumped out and this is where we get to NX2.

Scanning at 1600+ gives NX2 something to byte at with quite good possibilities of correcting and enhancing. For B&W I still find Color-it (son of MacPaint) easier and adequate. Trying to restore old pics in PSE was what originally put me off photoshop derivatives, something always on wrong layer etc. No problem with NX2 type selections (nor Color-it, where you can also cut and paste rather than stamp for seriously damaged pics).

Only caution is that when saving imported image as .tif, some programmes now seem to have different ideas on LZW compression and NX2 is fussy, so try 1 before doing huge batches and maybe don't compress. As always, whatever the origin of a file, once in NX, it can be saved as .nef with all adjustments still live for fine tuning later if necessary. So .tif can be binned anyway.

http://www.fileformat.info/mirror/egff/ch09_04.htm and adjacent pages give a lot of data about LZW, RLE, CCIT etc. for anyone preferring science to poke-it-and-see.