Tewitt Tarn

Bit of an experiment here with the Olympus LiveTime facility and a big stopper.  I wanted a long exposure to smooth the water.

When I tried LiveTime at home it worked great.  However,  when I tried it outside I just couldn't see anything on the screen.  It was impossible to see the image building up and I certainly couldn't see the histogram.  As a result most of my images were horribly over-exposed.  This one was retrievable and 'sort-of' worked how I wanted. 

Any OMD E-M1 Mk2 users out there who can give me a few tips?