Derek Robson

Robin.  A pretty neat article.  Around the time when the comet was visible night and morning, I took a mixture of images on a Star Adventurer with a 300 mm lens.  On some of the wide angle images with the standard 18-55 mm lens, I used a diffraction grating.  I didn’t do anything with the images at the time, but meant to go back one day.  The magnification with a wide angle is quite small though. Although the tail came out very bright and sky had a glow to it, I’m not sure if there was any faint diffraction pattern. I should go back and check in negative format.  That was the night my car battery failed when I was out in the countryside and I didn’t know my location 🙁