I'm going to chip in here.
My camera is a Panasonic XC-800 and it at least 5 years old and had an MSRP of £500. Even then 1080p at 50fps was really good. You can see my latest footage here -
https://www.youtube.com/watch?v=WXcpYVl_kcQ
This was accomplished on a tripod. All video and pictures were taken with the same camera (XC-800).
In the past 7 years since I started filming I have come up against lots of problems filming trains. So here goes.
1) Don't rely on the camera to pick up the numbers of the locos. The blur at close range masks the numbers. Your more likely to see the numbers at lower frame rates.
2) Microsoft moviemaker is a free editor. I tried others, but if ALL you want to do is join up clips and upload them to youtube like I do. Its enough. All the others have so many bells and whistles finding the fade, finding the widget that does this and that, its painfully slow if you don't know your stuff. Moviemaker doesn't have all those bells and whistles, but you can have fun straight away, its self explanatory for the most part.
If you want presentation stuff though, get something like Sony Vegas. You know, multiple screens flying around with different footage in each one. But if you just want to join up your clips, this is overkill.
3) Something I picked up on ages ago on cameras is a lack of 50hz 60hz switch. This isn't something you should be worried about, but something you should know about.
All camcorder manufacturers are Japanese (well most). Their country runs everything at 60hz (60 frames). If you buy a camera in Japan its 60hz. If you buy a camera in the USA its 60hz. If you buy a camera in Europe, its 50hz.
This isn't a problem in itself. If you use Chrome as a browser it supports 50hz 50fps in youtube (like my video).
However, if you use a non chrome browser, you are restricted on a PC to 60hz updates. This means that when your train goes past it will stutter.
So when buying equipment try to keep the 50hz chain going to stop the stutter.
This means -
50hz camera, 50hz display, 50hz compatible browser, changing the editor to 50hz.
If you do all this. Your trains will not stutter.
Ironically you could buy a 60hz camera from the USA. And all gear is compatible with 60hz.
Even more ironic, phones are 100% globally identical. Which means you don't get this regional 50hz setting on anything.
To give you an indication of one wrong setting. This is an old video at Basingstoke with my editor set to HD, this is defaulting to 30fps and causes a stutter when trains are fairly close (100 metres or less away).
https://www.youtube.com/watch?v=sXgoD6g10Ds&t=1888s - Look at 06:13 at the boxes carefully. See the stutter? Now go back to the video I posted above at Linslade and see the difference. Same camera, same editor, same everything. Just one setting difference.
You'll notice the difference more if you use a 50hz compatible display for both tests.
Lastly, if you cannot see what I'm talking about, don't worry about anything at all. Eventually you might see the difference. It all depends on what you understand and what equipment you have.
If anyone else has any questions about these findings i'm all ears.