[orioncheng]

我係新手一名,用緊400D 17-85 KIT 鏡,想換支好D既鏡,但係又唔知點樣選擇喎....我見呢兩支都好似好好咁.....唔知邊支會比較適合呢???請大家指點一下....謝謝....

[Canon Ball]

24-105mm is better in your case, because it is much less in weight and it fits better on 400D body. Its also comes with better zoom range and with IS. If you upgrade to 5D later and you can still use it.