Manjo,
It shouldn't be much of any problem with or for the glass in the lenses or ground glass. Robert Teague and I do it all the time. It isn't even a problem with smaller cameras either. Just use some caution, leave the lens cap on when you aren't focusing, or shooting. Also, be careful to not look directly into the sun (more of a problem when the sun is near the horizon) and particularly when using long/telephoto lenses (and lupe). The bigger problem when shooting at those times of the day though is from potential light leaks of the sheet film/holders or the Fuji QL/Kodak Readyload holders and film packets.
Rich