Tag Archives: auto-focus

Terrible Railroad Pictures? Tips for Overcoming Common Problems

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.

Nice angle, interesting subject, but the dreaded ‘shutter lag’ may make your life difficult. (Shutter lag simulated digitally for effect).

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.

No pixels were harmed in the making of this post.

Tracking the Light Posts Daily!

Long Lens Auto-focus Check

One of the great challenges of working with long telephoto lenses is getting the focus where you want it.

The inherent nature of a telephoto lens produces a comparatively shallow depth of field (relative field of focus). The longer the lens, the less depth of field.

So where precision focus is important with a wide angle lens, it is critical with a long lens, unless, of course, your intent is to make soft images.

Placing focus is important to me, as I’ve learned various visual tricks for directing the eye within an image by clever use of sharpness. Sometimes when photographing trains, the optimal focus point is not at the front of the locomotive; however, in this case, that was precisely my objective.

One of the reasons I’ve embraced auto-focus cameras, was that about ten years ago I concluded that I couldn’t trust my eyesight to make precision focus, especially when I had to do it quickly.

Test photo looking toward Platform 10 at Heuston Station, view from Conynham Road.
Test photo looking toward Platform 10 at Heuston Station, view from Conynham Road.

Using my new Fuji X-T1, I made this image on Friday February 20, 2015 of an Irish Rail continuous welded rail train crossing the River Liffey at Islandbridge in Dublin.

Exposed with a Fuji X-T1 with 18-135mm lens set at 135mm; ISO 800, f5.6 1/500th second, ‘Velvia’ color profile.
Exposed with a Fuji X-T1 with 18-135mm lens set at 135mm; ISO 800, f5.6 1/500th second, ‘Velvia’ color profile.

I arrived at my location a bit winded and had only a few moments to make a test photo and set the focus point (the Fuji allows for easy adjustment of the desired focus point) before the train came into view.

The equipment performed perfectly! The front of the 071 class locomotive is razor sharp. Hurray!

Very tightly cropped portion of the above photo to check for sharpness. Considering  that I made the image hand-held of a moving train, I'd say the autofocus worked admirably.
Very tightly cropped portion of the above photo to check for sharpness. Considering that I made the image hand-held of a moving train, I’d say the autofocus worked admirably.

 

Exposed with a Fuji X-T1 with 18-135mm lens set at 135mm; ISO 800, f5.6 1/500th second, ‘Velvia’ color profile.

Tracking the Light posts new material every morning.

Please share Tracking the Light!

http://briansolomon.com/trackingthelight/