So, last night I was bored. After I took my dog on a late walk, I looked up and saw that the moon was not seen and the stars were relatively bright. Since I have my new 24mm lens, I wanted to see how it would work on astrophotography.
I mounted my Canon EOS Rebel T3i to my tripod, set up my external shutter release, and set up the camera – ISO 400, f/2.8, BULB. I experimented with several exposure times: 30 sec., 1 min., 1 min. 15 sec., and 1 min. 30 sec. At 1.5 minutes, my exposure was already experiencing star trails. That was not what I wanted. I backed off to 1 minute 15 seconds, and I still saw that.
I have heard of light pollution, but i did not understand it’s affects until last night. Clearly, light pollution affects astrophotography in a big way.
Here are the results. Those lines in the images are airliners on approach to Atlanta airport. I live on their approach path.
Here is what I learned. You have to be in a place that is so dark you would get lost with a GPS. I can’t capture the stars at more than a minute without creating unwanted star trails.
I have a lot to learn about astrophotography and need a lot of money to get to the places where I can take those pictures!
On to the next!