數碼相機的鏡頭問題

你是否問 DSLR的鏡頭問題？

兩者其實無太大分別，純粹是設計的分別

不過一般內置伸縮的鏡頭，都較高檔的！

I think you are talking about zoom lenses. 內置伸縮 is better than 外置伸縮 since the lens does not protrude accidentally and the zoom ring does not become slacken easily.