Archived posting to the Leica Users Group, 2000/07/05[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
> Optical sharpness of moderately wide and mild telephoto lenses from each of > the cameras is demonstrated by using 36x blowups from a test chart. The > Leica lenses tested were the 28mm Elmarit and the 90mm APO Summicron. All > test frames were shot at f8. A couple of the shots were spoiled by AF or > operator error (the Contax automation and the Konica's tricky rangefinder). > Other than those it's...quite frankly...darned near impossible to tell the > lenses apart. These are measures of sharpness only. Other more subjective > lens performance characteristics are not addressed in the article. At f:8, many lenses are already diffraction-limited. Leica optics are particularly so, performing at their best already at f:4 or 5.6.