'A Sodium vapor lamp is a gas discharge lamp which uses sodium in an excited state to produce light. There are two varieties of such lamps: low pressure and high pressure. Because sodium vapor lamps cause less light pollution than mercury-vapor lamps, many cities that have large astronomical observatories employ them.'
From what I have read on sodium-vapor lamps they produce much less light pollution. This is the reason they are used. Up to now I have tried a shoot using sodium lighting and found it very hard to use due to it being dark when taking the image. Being dark it forces you to use high ISO settings; something which produces very noisy images.
Below are some examples of uses of sodium lighting that I



Below I have put my photographs that have used sodium-lighting as a light source. It is something I found very difficult to do due to the use of high ISO's and the noise this creates. The best I could do without consulting anyone about it as to up the contrast of the images. I found it to be relatively successful and made the pictures look better on the whole.
I'll start with the first image. Out of both of the images this is my favorite. It was taken in Accrington town centre on Peel Street. I like how the perspective leads your eye towards the building which is the focal point of the image and the 'object' I chose to photograph. I love how light from the street lamp forms a sort of vignette on the building. I also really like how the building looks. I like the texture and how it looks like a typical mid-20th century building.
The second image is of the pay toilet on Peel Street. I like how its almost 'crushed' into the frame. This daws your eye to it.