Tag Archives: TOV2012
Here are some photographs from the Transit of Venus. I have clicked away 958 photographs (mostly because I would like to make high-resolution images using image stacking), and going through the entire collection will take a while. In the meantime, I would like to present a sample of the photographs here. Hope you like them.
Following the good advice from this blog, I ordered the Mylar emergency blankets which arrived today. I had prepared some cardboard fixtures but as it turned out they did not seem too steady. I finally decided to go ahead affix the two sheets of Mylar with some office tape and a rubber band to […]
Summary: Although you can probably use (a combination of) photographic neutral density (ND) filters to reduce the same amount of light as a typical solar filter (e.g. Baader solar filter), it is not SAFE for your eyes as it will not filter out the harmful Ultraviolet (UV) and infra-red (IR) light. The table below shows […]
Summary: Estimate the apparent image size of the solar disk and Venus in pixels for certain camera and simulate the ideal observed image. Disclaimer: In this post, all discussions are based on the apparent image SIZE of the subjects — solar disk and Venus. I have not discussed any issue of resolving fine details, which […]
Summary: What can you do if it is a cloudy day? My attempt at practicing solar photography yesterday evening was a mega disaster! I had only taken 3 to 4 photographs, when the western sky was filled with thick layer of dark clouds (rain came later in the night). So I came back home feeling […]
In my previous post, I mentioned my reasons for ordering the Baader AstroSolar film in preparation for photographing the transit of Venus. In this post, I will describe the process that I adopted for making a solar filter. The filter can be fitted to any D-SLR lens using a standard Z-PRO Cokin ND filter holder. […]