A few astronomy-related DIY projects and astronomy hacks, from reducing light pollution to building filters and spectroscopes. All these projects can be built with everyday household items.
This is a simple construction method for a DIY solar filter to be fitted over the front of a camera lens. The filter, in this case, is a section of Baader film and is designed to fit the end of a telephoto lens. Auto focus still functions correctly on my Canon EOS 350d.
A short tutorial which shows you how to effectively reduce light pollution and orange gradients in Photoshop using a few basic filters. The resulting images will have more definition to the stars and nebulas and be without the horrible orange hue.