Flood
Established
What makes you say that? I just took a test shot at 1/4000s at f/2 without a problem.
You can turn the dial to 1/4k but if the aperture is f/2 it will be shooting at 1/1k anyways. It's just the design of the leaf shutter. Hence the built in ND filter.
Well, I can take pictures at 1/4000s just fine, and they're 2 stops underexposed compared to 1/1000s.
