Category Archives: Solar

Baader Astrosolar Photo film ND 3.8

September 23, 2016 // by ecuador

In a previous Solar filter test I explored how various filters help with getting some better white-light Solar surface feature photos, and I had noted that while I was using the Baader Astrosolar Safety ND=5.0 film, some narrowband filters would benefit from the photo grade Astrosolar ND=3.8 film, as with allowing as much as 1/6310 of the […]

Baader Astrosolar vs Thousand Oaks Black Polymer solar filter

September 11, 2016 // by ecuador

There are two popular kinds of inexpensive solar filters which you can buy in unmounted sheets, cut them and mount them yourself. The older kind is the black polymer type, with the most famous kind (especially in the US) being the one that Thousand Oaks makes (their glass filters are also popular), while the currently […]

2016 Mercury Transit @ Heaton Park

May 13, 2016 // by ecuador

We had an unusually sunny day at Heaton Park on May 9th, so we enjoyed the Mercury Transit along with many friends from the Heaton Park astro group and even more people who where just enjoying their day at the park. The only downside was the strong wind, which tended to cover everything with sand […]

Imaging the sun in white light and Baader Solar Continuum or other color filters

May 7, 2016 // by ecuador

One of the most inexpensive accessories you can get for your telescope is the Baader AstroSolar safety film which you can use to safely observe and photograph the sun. Baader also has the 540nm-pass “Solar Continuum” filter to improve the definition of some solar features, so I thought I’d run a little experiment to see exactly […]

2015 Solar Eclipse @ Heaton Park, Manchester

March 20, 2015 // by ecuador

Well, that’s it for Europe until 2026. We had a nice gathering with a lot of people of all ages at Heaton Park, Manchester today, however the weather was not favorable. We did lose the sun completely near the maximum (and I don’t mean the moon covered it – it was due to thick clouds) […]

The easy solar filter: Baader Astrosolar Film on aperture mask cover.

March 15, 2015 // by ecuador

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 […]