Archived posting to the Leica Users Group, 1998/06/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Tom Shea wrote: > Some people seem to think that they can demonstrate the quality of a lens by > photos posted on the Internet. While one may be able to tell the difference > between a disposable camera and a current generation Summicron 50 2.0, it is > simply not possible to distinguish between higher quality lenses by this > method.This is not to say that it is not interesting to see posted photos. Such > photos are often very interesting and can tell a lot about the style of the > photographer and the subject. Such photos, however cannot distinguish between > a current generation Leica lens and a 30 year old Minolta consumer grade lens. > Both will look the same. Hi. For once, I would like to support your point of view. I also believe that with 'normal' size JPEGs, as the ones we are usually invited to 'admire' on the Web, there is hardly any trace of the technical qualities of the neg, the slide or even the print they come from. Everything is degraded due to the process itself. Furthermore the colour images will be seen with thousands of different renditions depending on the observer's system. It is complete nonsense to use the Web as a demonstration means of optical quality. It is not even obvious that in all cases one would recognise the disposable camera's image from the Hasselblad one. But, nevertheless, what is left by the Web gives a pretty good idea of the essence of the image: its relevance, its originality, its emotions, its message, whatever. In other words its usefulness. Unfortunately, and this tells a tale, 90 pct of what is published on the Web sums up to middle of the road 'nice' images that belong to the family photo album or on the photographer's desk at work. There is nothing more vain and useless than pages advertised as 'proving' the quality of hardware or emulsion and that end up in a bland series of back garden snaps. It is counter-productive to link these images to debates on Leica quality. The 10 pct of interesting images remain interesting even after passing through the JPEG and Web destruction. This also tells a tale. It is also counter-productive to link these images to our mystical debates on the optical Graal of Leica quality. There are ways of illustrating optical quality debates on the Web. This requires high res high quality scans from which you cut out a small area. Depending on the enlargement ratio of that area, you are able to show such things as resolution or grain. That small area can be published on the Web as a link to a downloadable TIF file. Very boring. Alan Brussels-Belgium