I finally had the chance to test my new 200 mm lens last Monday night. There were high altitude clouds and severe light pollution at home but I wanted to see how wide will be the Field of View of this lens. So, I set up my astro equipments and started shooting. One thing I learned was that it was very hard to nail the focus at F2.8. A good focusing aid should be next in my to-do list. I hope it will not be too late to image this nebula again in colors next time I head out to a dark site.
