Recently I went out to take pictures of the Leonid Shower and got my first capture... it sucked. Ive been having issues getting these pictures since august, with the Perseids. It seems with all of my pictures even when a meteor passes it wont pick it up. I almost always use these settings, f2.3 ISO1600 15sec. The only meteor capture i got was of the trail left behind from a bolide. Is it possible that after the meteors leave that the ISO blotches them out? With the Geminids quickly approaching from Dec 8 to 16 I really need help.