[onlam99]

請問Sigma 50-500mm F4-6.3 DG HSM 吾Sony a350 用呢?

[dd wong]

but my teacher told me about the sigma one was not good so i thought the tamron 200-500 is more good but the 50-500 can not give the sony a350 and the all sony DSLR but i think you can choose the new one sony lens 70-400 and i think you know if you use the live view you can use the 2x and you can be 70-400 to 140-400,so that i will buy the 70-400 in 2009.

[onlam99]

thanks your help ,