Archived posting to the Leica Users Group, 1997/10/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> > 35-70mm. R f4.0 ASPH ?? > > > > Sorry, my mistake! Should be just 35-70 R f4.0. ASPH may not be part of the name but according to the Leica press release http://www.leica-camera.com/press/meldung/0297_02e.htm this lens does have an aspherical surface. Here is what it says about this lense's construction: "This optical performance is achieved through eight elements, four of which consist of highly refractive glass. One of them is also aspherically ground and polished according to an innovative technique which Leica Camera helped to develop. Through the precise and durable brass/aluminium mechanical elements, two groups of lens elements are pushed against each other when the focal length is adjusted, whereas only the front group is moved when the focusing is adjusted. The focusing range extends to the close range of 60 cm, an additional macro setting even enables photos to be taken as close as 26 cm. This corresponds to a smallest object field of about 6.7 x 10.1 cm, allowing frame-filling exposures of small objects and animals."