Bill, Optics Central’s resident birdwatcher and all-round optics nerd, explains prisms in binoculars. He starts with how Porro prisms which are found in the traditional shaped binoculars work. Then, he […]
This is part 3 of my series on astrophotography with filters. Last time I explained how the human eye sees in colour, using three different types of cone cells. We […]
This is part 2 of a series of blogs about filters and narrowband astrophotography. Bill explains how filters work, why you might use different filters and what a photo taken […]
This is part 1 of a series of blogs about narrowband photography. In this introduction part, Bill talks about how – and why – he moved from taking astrophotographs with […]
It’s the last day of our Celebrating National Science Week experiments. We hope you enjoyed it as much as we enjoyed writing them. This final experiment is very different from […]
It’s almost the end of the National Science Week activities. In yesterday’s article, Fruits Magnified, fruits were the main subject being studied in detail under a stereo microscope. What we […]
Find out why the Moon appears different on different nights of a month and the names of the eight Moon Phases. This topic works great as simple general knowledge and is also one of the fundamentals of getting into lunar observation. Read now!
To celebrate National ScienceWeek in Australia, OpticsCentral is posting one experiment every day for the week. Today, we will be talking about counterfeit detection and identifying the mechanisms that are in place to protect our currency.
Day 2 – Build your own telescope What is a telescope? A telescope is a tool used to look at distant places as if they were nearby. While telescopes have […]
Celebrate National Science Week 2016 with us! In celebration of National Science Week (August 13th to August 21st, 2016), we will be posting one cool experiment to do with your […]