Archived posting to the Leica Users Group, 2002/12/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]There is a very informative site at http://www.clarkvision.com/imagedetail/scandetail.html Meino de Graaf |---------+---------------------------> | | Martin Howard | | | <mvhoward | | | @mac.com> | | | Sent by: | | | owner-leica-user| | | s | | | | | | | | | 12/18/02 02:05 | | | AM | | | Please respond | | | to leica-users | | | | |---------+---------------------------> >-----------------------------------------------------------------------------------------------------------------------------| | | | To: leica-users@mejac.palo-alto.ca.us | | cc: | | Subject: Re: [Leica] digital versus film | >-----------------------------------------------------------------------------------------------------------------------------| Henning Wulff wrote: > One of the reasons digital looks so 'sharp' is that it's MTF is very > good up to the resolution limit, so that things that need up to > 20lp/mm to image well are rendered extremely 'sharp' by cameras like > the 1Ds, while film has a gradual roll-off where some contrast is lost > already at lower frequencies, but on the other hand at very high > frequencies there is still information left. It's the old story: analogue things fail "gracefully", while digital things fail abruptly (or, as some call it, "catastrophically"). It appears to be a robust pattern that is manifest is imaging, audio, control, even displays. I believe "fuzzy" systems go someway towards addressing the issue, but I'm not a fuzzy systems expert, so I don't know the details off hand. M. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html