The day for which we have been waiting and preparing for has finally arrived at our doorstep. In the US, the weather forecast is not looking good due to two sharp dips in the jet stream, over the eastern and northwestern U.S. I will still keep up my hopes and I urge you all to do the same. You never know how surprising life and weather can be.
This will be responsible for enough clouds and rain to render viewing of the Venus transit unlikely, except online or on-air. — Weather.com
This is the forecast for today’s weather in the US:
Due to the weather I am expecting to face some strong winds. In one of the previous blog entries, I posted about my solar filter which can easily attach onto a standard (Z-PRO) size photographic ND filter holder. While the advantage of such a design is that it is not custom-built for any particular lens and you could use it with any lens that can be fixed with the filter holder, one big problem is that in windy conditions it can “catch” the wind and act like a sail. This can introduce a lot of camera shake during capture and pose huge problems especially for telephoto lenses. So, I had to quickly come up with an action plan for windy situations. I didn’t have the time to take pictures of each step for the making of this filter, but it is easy enough that you can get the idea. I basically used a foam pencil cup holder that can slide onto the lens. At the object-facing end of the cup, I attached a cardboard cylindrical ring onto which I had already fixed the AstroSolar film like a drum. Here are the photographs of my modified setup:
For a quick test, I took 3 hand-held photos of the Sun (12:49 P.M.) using the above contraption. The first image of the Sun below is one single hand-held photo of the sun. The second one is a “stacked” image from the 3 photographs using RegiStax 6 (I am a new user of RegiStax myself, so the processing may not be optimal)
With that, I would like to wish “Good luck” to all of you, and hope that the weather will be with us.