One is the Carl Zeiss Vario Sonnar T* 24-70mm f/2.8 ZA. which should be perfect for landscape and portrait photography. It is said that this lens exhibits excellent contrast and center-to-edge resolution. Really appealing is the fact that it's f/2.8 aperture will remain constant throughout it's focal length. Also, this lens is the only compatible large aperture standard zoom with the benefit of image stabilization available in the industry.
The other lens is a 70-300mm f/4.5-5.6 which should be ideal for ideal for sports and portrait photography. The lens offers superb contrast and sharpness across its focal length range. It is said to maintain excellent optical characteristics from center to it's periphery.
Both lenses feature Sony's Super Sonic wave motor (SSM). Both lenses will be available this spring. The the SAL2470Z Vario-Sonnar T* 24-70mm f/2.8 ZA lens will be available for about $1,750 and the SAL70300G len f/4.5-5.6 lens will be available for about $800.