The combination of telephoto capabilities and an f/2.8 aperture throughout the zoom range up to 500mm makes this a great lens for wildlife, sports and for you stargazers, astrophotography.
远摄镜头的性能加上f/2.8的光圈，再加上最长500mm的长焦端，使该镜头适合拍摄野生动物和体育赛事，也是天文爱好者进行天文摄影的绝佳镜头。
Some methods suggest that the camera be removed and a reticle eyepiece be used – not quite an option for those using camera lens for astrophotography.
有些方法是要将相机换上一个十字目镜， 但用相机镜头拍摄的人一般没有换上目镜的方法。
应用推荐