Conventional narrowband filters (12nm or smaller bandwidth) do not work with the Hyperstar III system due to its very low f#. The cone angle of the rays passing through the filter are so far from normal incidence that the actual … Continue reading
You will see from a couple of posts below that I had some severe computer trouble. All I wanted to do was upgrade the processor and memory and keep everything else the same, strangely the graphics card played up after … Continue reading
Noel Carboni has been putting a considerable amount of effort into developing a new star spike plugin for Photoshop. He has been trying it out on a few of our images as a test and this is the result of … Continue reading
After a considerable amount of pain and anguish – I’m back in business computer-wise 🙂 Now have a quad-core 2.33GHz running with 4Gig of RAM and a pair of 24″ “letterbox” LCD monitors. Also added a 2Tb external hard drive … Continue reading
Took the 40D out for a couple of hours last night as it was clear – clear but very moist air, so moist I packed up at midnight as it was almost fog. Used the 17-55mm zoom at 55mm with … Continue reading
Unfortunately last night (12th) we were completely clouded out, so I didn’t get a chance to put into practice what I’d learned about meteor imaging (the first time I’ve attempted this) from the night before. Never mind, we still have … Continue reading
Noel Carboni worked his Photoshop magic to bring a great image out of very suspect data! This was only 45-seconds of exposure time at ISO1600 using the Canon 40D and the 17-55mm zoom lens at 17mm. In this image you … Continue reading
Norman Lockyer observatory – what a great place! Even without the Astronomy Fair, you really should pay it a visit if you’re ever passing that part of the country. David Strange – thank you for sorting out accommodation (and Car … Continue reading
Don’t forget that the Astronomy fair at the Norman Lockyer observatory is this Saturday 8th August 2009 all day including 4 lectures, two in the morning and two in the afternoon. I shall be giving a lecture from 4:00 – … Continue reading
