Optics Central - Telescopes, Binoculars, Microscopes & Telescopics Sights
If you have a telescope and want to enhance your night-time observations, there are tools and techniques you can use. One approach involves using Astronomy filters, which are important accessories that can isolate specific wavelengths of light. This helps to reveal fainter deep-sky objects with greater clarity. Filters come in various sizes and mounting options […]
Read our review of the Optolong L-Ultimate Filter – a 2-inch Filter designed for Colour CMOS Astronomy Cameras that makes light-polluted, narrowband astrophotography a breeze.
After using many different types of light pollution filters – one filter that stands out the most is the L’eXtreme filter by Optolong.This filter boasts a 7nm range in the Ha (hydrogen) and Oii (oxygen) bands, which is comparable to dedicated narrowband filters – that offer 7nm. The L’eXtreme filter allows me to photograph deep-sky […]
I am a dedicated Astrophotographer, so I am always looking at ways to improve the quality of my images. I work full time, have a gazillion of hobbies, so that means I haven’t got the time to invest my money into a dedicated Mono camera, take mono photos, use dedicated narrowband filters and then combine […]
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 use one type for sensing red light, one for green light and one for blue light. The different channels are then recombined in our brains […]
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 through a filter looks like. In the previous blog, I went into a bit of my own history: how from DSLR photography, I gradually moved […]
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 a plain DSLR to a monochrome CMOS camera with filters. It’s all about how you want the hobby to develop Astrophotographers aren’t normally wealthy people. […]