Olympus Zuiko™ 14-54mm f/2.8-3.5 Lens

When the lighting is good, pictures are indistinguishable from the standard kit lens (F3.5-5.6 14-42mm) Under marginal lighting conditions, it is truly excellent! Photographed an evening Cub Scouting event with both (including outdoor games at sunset), The photographs taken with this lens were the only ones worth keeping.

I purchased the 14-54 lens as an upgrade to my camera kit. Other lenses that I use include the 14-42, 17.5-45, 40-150 and the 70-300, all being good lenses of standard build/grade. The 14-54 offers "weatherproof" construction that can stand up to splashes and dust. Living in a sea coast environment, I bought an E-1 for the same weatherproof qualities, hoping to overcome my reluctance to expose my other lenses(and my e-410) to beach sand, crashing waves, etc. I am not overly impressed by the actual improvement of image quality, compared to both the 14-42 and the 17.5-45. This lens is brighter/quicker, however. It's substantially bigger/heavier, as well.
I would recommend the purchase of this lens, but caution that the upgraded performance may relate mostly to it's better construction features.