I just spent time on the North Carolina Outer Banks sand dunes. The sun was very bright. I was unable to see the photos and the histograms on the back screen. I just bracketed . As a result had a number of markedly underexposed photos. I thought of a hood of some type. "Auto" over exposed all the photos. Any other ideas. Never had the problem before.
#4. "RE: see photo on screen in bright sun" In response to Reply # 0
Living in the arid Arizona Southwest (Tucson), I like you have problems seeing the LCD screen on my D7000 when I'm photographing outside during the day. I don't, however, experience many problems with overexposure and don't generally try to reference the histogram screen in the field.
It sounds like you might need to bias your exposures down a bit using the exposure compensation button.