// Just came back from my Mount Bromo trip and I finally found time to complete this tutorial, after I wrote my first article for SLR Lounge last week, before I have to fly again soon. I will update this tutorial along the way but meanwhile, I hope this will get you started. A recent study suggests that Singapore was ranked as second safest out of 99 countries and this may also imply that the heavy light pollution here could have helped maintain the city's low crime rate. So, light pollution will continue to be an ever-growing problem in major cities that threaten human sleep patterns, animal migrations, natural habitats, heritage of appreciation for our night sky and more. Of course, I am not implying that we should compromise on safety in order for us to admire heavens, but there are smarter ways to light up a city by pointing down the street lights and using very focused LEDs. Check out the video below by International Dark-Sky Association to understand the ecological m...