Your post #45 of 1848 Cincinnati given a good look by me. It is interesting to note the advance in the techniques of photography in ten years. How clearly defined are the images. Same thing with computers. How glad I am that the unsung heroes who refine and embellish the original breakthrough do their stuff.
Dauguerre's process has extremely fine grain and, therefore, exceedingly high resolution. There are some Flash apps
here that let you zoom in on those Cincinnati photos. You can easily read the signs on the shops, etc.