Bad timing, poor exposures, lousy composition and blurred images can all result in missed opportunities.
Was it human error or an equipment malfunction? You got to the tracks in time but your camera didn’t perform as expected. Is there something wrong with your camera, or was it simply set the wrong way.
There’s the moment of frustration when you press the shutter release and nothing happens, or the auto focus goes haywire, or you realize the camera is in a ‘mode’ and not the right one for making railway pictures—All well and good if you have time to resolve the problem, but if a train is passing at speed, you might end up with regrets rather than results.
Even if you are an experienced railroad photographer, you should take the time to learn the peculiarities of your equipment and double check the exposure and focus settings BEFORE you expect a train to enter the scene.
Earlier, were you using the self-timer? Be sure to turn it off again before you expect to use the camera for making action photos.
Why was the camera set to manual? AND why was it a f22 at 1/8000 of a second?
If you don’t know why, that’s going to be a problem. So step back and go over the basics. Or rely on ‘automatic’ modes until you have the time to cover that properly
Locomotive headlights can confuse camera autofocus systems. The result may be that at the very moment you need to rely on autofocus, it fails you.
One potential solution, if the autofocus starts hunting wildly quickly point the camera away from the headlights and allow it to find a focus point, then point it back at your subject.
Another solution: before the train arrives in the scene, auto focus on a preset point, then switch the autofocus off so that it won’t attempt to refocus at the last minute.
Autofocus problems tend to be more acute on dull days and in low light.