Archived posting to the Leica Users Group, 2001/05/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]"Stanislaw B.A. Stawowy" wrote: > > >Sorry, guys, the Canon 1.5 has exactly the same type of bokeh the 1.5 > > >Sonnar and 1.5 Jupiter have (to say nothing of the 1.5 Nikkor). Those > > >triangles in Kyle's picture are something else entirely. Maybe flare. > > > > > > Maybe "coma." > > it IS coma. > > Look at those circles - have dark center and bright edges. > As front element of Sonnars (and, AFAIK, Canon 1.5 is a > stolen Zeiss Sonnar design) have strong curvature, they > exhibit strong coma. Circles: ( ) change into: /\ > ----- > St. Good point about the curvature. The Canon is a Sonnar copy, but better executed than the Soviet copy (and without benefit of the Zeiss tooling!)