I started with digital imaging back in 2003 with the purchase of a Canon EOS300D and an early version of Photoshop and almost immediately noticed very rare but obvious objects appearing in the skies that I certainly didn't see with my eyes. The first one was with the Canon and was a long cylinder tapered at each end which was tilted down at the right side. This was in the sky of a landscape shot and was pretty obvious. Similar objects have been recorded using a Nikon D70, Nikon D1X, Nikon D600, Nikon D4S and an Olympus Pen Lite EPL-3 compact. Various 'objects' always in the sky even though the foreground is often a smooth tone like the sky and usually tilted at an angle. What are they..? I'm guessing they could be spurious electronic glitches but they form a definite shape unlike the EPL-3 object which appeared to be a thin silvery line. My thinking is that I never noticed them with film but of course I wasn't then looking or aware. Any thoughts..?