Un til recently, I had a Canon 80D and a Canon 24mm lens which combination I used to take close up photos of scale plastic models. However, I found all this overkill for my railway. I have since sold all my Canon gear and bought lots more Maerklin "stuff"!.
I now use my iPhone on a tripod with remote shutter firing. In addition, I use Helicon focus to image stack my close ups. With the iPhone, I can tell it where to focus, let the camera settle and then use the remote to take the image. That way, I get 6 - 10 images which Helicon Focus puts into a really clear singe image.