推荐使用带有300 - 400毫米镜头的数码单反相机，但如果有一架有10倍变焦镜头，性能良好的小型相机也可以。
Digital SLRs with a lens focal length of 300 to 400mm are recommended, but you can get away with a decent compact with a 10x zoom.
相机和潜水壳的技术进步，是日新月异的，不过，我们推荐的，都是目前潜水朋友们最好的选择了。
Camera and housing technology is always changing, but these are the solutions we're currently recommending to our best dive buddies.
那我推荐这款入门级的数字单镜头反射式相机。
应用推荐