I don't really remember .
some of the window models were seriously discounted , and next models didn't have a window.
no more than that.
someone has to take a few for the team on this
in terms of faster AF'ing and , and useful window.
there is nothing wrong w my model and how I use it
to get me to try this one.
rats
this model is 6 L their 6.5 L model costs $ 285 .
wonder why the difference in price