This is consistent with the definitions I have heard. -----Original Message----- From: Darren Addy <pixelsmi...@gmail.com> Sender: pdml-boun...@pdml.net Date: Sun, 2 Jan 2011 08:46:55 To: Pentax-Discuss Mail List<pdml@pdml.net> Reply-To: Pentax-Discuss Mail List <pdml@pdml.net> Subject: Re: Question of terms and/or English
I've lived 51 years without knowing what acuteness is and feel none the worse for it, so I think we can safely take it out of the English language. Still, this seems to be a good definition I found while Googling (to better myself): "Sharpness is a subjective sensation. Objective correlates of sharpness are resolution and contrast (MTF curves are one way to represent resolution and contrast - there are other ways). The term resolution refers to the ability of a system to separate (i.e., resolve) two closely spaced lines. The finer (i.e., the more closely spaced the lines) the system can resolve, the better the resolution of the system. Acutance refers to the abruptness of an edge. That is, does black abruptly become white or is there a border where black goes to dark grey, light grey before going to white." -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
