Thanks for the well done presentation, it is a very complete history the Swarovski SL.
I have a few observations, one is that before Swarovski was ready to enter the roof prism market,
they were able to work on a design to bring forth a sleek designed porro prism, with the poly body...
I have the 8x56 SL, they are a big binocular, large in size, and simple in their optics with their
Gijs could comment on the history, and Henry has experience with several of the models when
they were current, there are threads on the model if you go back and look.