Read this section and start taking pictures of trains instead of just locomotives. This section explains a couple of common methods of focusing. Be sure to check out the 'Sharpness' section as well. Learn all about the enemies of sharpness and what you can do to defeat them. This section will help make concerns about the correct exposure a thing of the past and allow you to get the perfect shot every time.
Nobody takes perfect pictures all the time.
Everyone encounters problems on occasion. You may want to check this out. Grumpy's Photo Guide is the only place on the web where you'll read about this mystery. Having a good strategy can make a world of difference. Read up on how Grumpy manages to make the most of a sunny day.