One of the best and least expensive solutions for observing the sun with a telescope is to use the Baader Astrosolar Safety Film. There are many places that will sell you a pre-mounted filter for your telescope, or you can make it yourself and save money. For example, by gluing strips of cardboard around the […]
The easy solar filter: Baader Astrosolar Film on aperture mask cover.
March 15, 2015 // by ecuador
DIY: Reducing DSLR Vignetting of 1.25″ Filter On 2″ Focuser
February 10, 2015 // by ecuador
We know how even with APS-C sensor you need a 2″ focuser to avoid significant vignetting. However 2″ filters are significantly more expensive (which can translate to quite some money for some nice AP filters that were recommended to me), and not as many options available (even fewer are available as clip-on and usually even […]