(31 Aug 2015, 8:10 pm)Jimmi wrote I have issues understanding how to use my camera and I am unsure which modes should be selected for each photo and some results of this are disastrous, photographed 5409 and a Venture Solo SR in Durham this morning with the camera on setting "S" and it looked really dark so I don't know what to do about that. I try to avoid editing the photos (excluding cropping) as much as I can although on some occasions I have had to alter the brightness on some photos and on my shot of 9108 on Friday I altered the sharpness in the hope of making it look less blurry. Sorry if this disappoints you but I do my best to prevent this from happening.
S is your shutter speed mode - it's the mode I always tend to use.
The higher your shutter speed, the darker the photo. The lower the shutter speed, the lighter the photo, but lower shutter speeds aren't great for photographing moving objects as it increases chance of blur.
Northern156 has previously stated it's a good idea to use 1/100 for every 10mph a train goes (so 1/1000 for 100mph), which seems to work well based on my few attempts since. Pair this with exposure compensation, and your shot should turn out half decent in terms of light.