Hi I have three lenses for my Sony A200, Sony 18-70, Sigma 70-300 and Minolta 50mm . We are off on a city break shortly and I only want to take one lens for convenience. The 50mm is the one I am thinking of taking for its low light abilities as I prefer not to use flash , but my question is will it be wide enough for shots of landmarks, group shots etc . What would you advise? Thanks