QUOTE (Nill Toulme @ Jun 13 2008, 07:20 PM)
Necessary? No. Useful, convenient, and perhaps even "better?" Yes.
I second the recommendation of PK Sharpener.
Nill
~~
www.toulme.net
If you are using Canon, then DPP is the best sharpener known to man - like getting a new camera.
If you have a DB, digital back software also handles sharpening automagically, IMHO.
Edmund