Olympus E-600 has a Four Thirds lens mount and currently there are 47 native lenses available for this mount.
The latest released lenses that are compatible with the E-600 are the Sigma 24mm F1.8 EX DG, the Samyang 14mm F2.8 and the Rokinon 14mm f2.8.
E-600 also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on the E-600.
Since Olympus E-600 has a Four Thirds sensor, it has a focal length multiplier of 2× so you have to multiply lenses original focal length with this multiplier to find the Full Frame equivalent focal length of the lens when mounted on E-600.
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Olympus E-600 Lenses with Image Stabilization
Olympus E-600 Lenses with Weather Sealings