To make sure not all profit remained with Leitz, the president of the Carl Zeiss Jena plant ordered that the Leicas should be fitted with Carl Zeiss lenses.
For example, Zeiss produced view camera Tessar lenses at least as early as 1900 and those continued to be produced into the 1960s or 1970s. Contax Carl Zeiss Distagon T* 28mm f/2.8 AEJ Lens MINT w/ Filter from JAPAN: Description+++ Contax Carl Zeiss Distagon T* 28mm f/2.8 AEJ Lens 100% authentic from JAPAN!! Completely immerse yourself in the creative photography process – with the ZEISS ZX1.
The D40 has a very fast 1/500 flash sync, useful for daytime fill-flash.