Archived posting to the Leica Users Group, 1998/09/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Lugnuts, I caught the tail end of a Zeiss seminar ( quite a creature ;-) in Minneapolis the other day. They had on display a number of Ektar 25 prints made from Carl Zeiss lenses. The prints were all incredibly sharp. What was of interest were the following statements in a handout describing the gear involved: 1.) " One hundred twenty to 130 lppm is necessary to make a high quality 16 X 20 print". 2.) Describing their Planar 50 f1.4, set at f8; "This is the highest resolution ( 200 lppm across the entire field ) lens available in the world for general photography". Questions are as follows: 1.) What Leica lenses would meet the 120-130 lppm criteria? 2.) How does the new R-50 f1.4 compare to the Zeiss 50 f1.4? 3.) Does the RTSIII vacuum back ( flatter film )enhance the sharpness of a lens significantly? All lenses ( 21mm, 50mm, 60mm Macro , 100mm Macro) used were on a tripod, Contax RTSIII, mirror up, shot at f8, & used Ektar 25. BTW, all of these lenses were at least 130 lppm across the entire field at f8 Has anyone out there ever used a Contax RTSIII & compared results to Leica gear? It was impressive stuff :-e ! Tom D.