I'm quite a happy camper today! This was my first attempt at this, and I think it came out about as good as one could expect given my equipment and location. The 75-300 is a nice lens but a telescope it is not! This is the ISS captured as is passed in front of the sun. I took MJPEG video of the event and then combined all the frames. This was NOT easy. This sort of transit only happens about once every one or two weeks within a 100 mile radius of any given location, and usually it happens with the sun too low, or with bad weather. In this shot the ISS was 300 miles away and moving at 17,000 miles an hour. It took half a second to cross the sun, giving me 16 frames to work with. I used ISS Transit Prediction for Android to find out where and when I needed to be ahead of time. Anyway, here it is. Sunspots too which was a bonus. Captured with the Olympus 75-300 on an E-P5.