Night composite experiment.

Had to back blip this one. I wanted to re-visit a technique I haven't touched for a couple of years.

The building is an HDR made dark. Later that night I had a go at star trails - and will do a proper one soon - they just take a while. Around here there is so much light pollution, I need to find a darker place.

Anyway I used a proper night shot and whizzed it in PS to get the light trails then stuck it onto the building shot using screen blend.

All in all, it got very late and I couldn't remember how to do it. So here it is a bit rough and ready and a day late.

Never mind - it's Friday, the weekend beckons and the sun is shining!