How about Nikon 20mm2.8d? What should I pay attention to when taking D300S as landscape photography?

This lens is not bad, and it is the best of several old wide-angle fixed-focus models that Nikon has not stopped production at present.

But after all, it is an old lens, and there are still many purple edges without digital optimization.

In addition, when used on D300, the equivalent focal length is 30. This angle of view is not too wide, sweeping the street is ok, and shooting the scenery may be a bit insufficient.

Wide-angle zoom is recommended for landscape photos. 10-24 is very good, and 12-24 is better and more expensive. In fact, 16-85 is enough. If you must choose Quan Huafu lens, silver wide angle 18-35 is a cheap and good choice.

If you really want to pursue professional results, you should be fully dressed.