If you are just going to be posting photos on model railway websites even some mobile phones take good quality shots.
You will get no argument from me that pound for pound the bigger sensor should be better however much of what is looked on as great (model railway) photos are taken with modern smaller equipment.
How big a camera do want to lug around, are you just going to take shots on your own layout, do you want to blow them up to poster size, billboard size, or just A4, etc? These issues need to be taken into consideration not just a list of often irrelevant specs.
The best camera is the one you have with you when an opportunity presents itself.
While I have a DSLR and lots of lenses I mainly use a quality small camera with good optics. It is a lot easier to lug around when layout visiting so it gets taken along. I currently have a Panasonic Lumix LX7, there are plenty of other similar options.
regards
Bob
