Circle in a square

The train was leaving the station when imagined this exact shot.  Movement, a circular window and square framing.  I knew I wanted the outside to be exposed even if the inside was really dark.  I had just enough time to frame the shot and do a quick exposure hoping it was on point.  I nailed it and was so happy.  The outside is perfectly exposed (and still moving just a bit) and the inside is light enough that you can see what it is.

It’s a circle… inside a square.

Thanks for reading and happy shooting,

Scott