How to motion-blur

Shooting at night with a fast lens is so much fun. I took this photograph with the same lens I talked about yesterday - the Canon 24mm f/1.4.

I didn't have the tripod with me that night but I wanted to get a slight motion blur of the passing train. The rule of thumb I apply for motion blur is to shoot with the same shutter-speed than the moving subject is passing by in mph...hmmm - I hope you are very confused now because I would be. Here is what I mean:

I your subject moves with a speed of 20mph, you shoot it with a shutter-speed of 1/20th. You obviously need to guess the speed if you do not have a radar gun with you but that shouldn't be too hard. The train in the photograph was not driving by in full-speed but was rather breaking to stop at the station.

Exif Info:

  • Camera: Canon EOS 5D Mark II

  • Exposure Time: 0.05s (1/20)

  • Aperture: f/2

  • ISO: 3200

  • Focal Length: 24mm