Early experiment with dry plate negatives. This images was shot at (if I remember correctly) @ f22 for 5.5 minutes. The emulsion is still not perfect, but better than my first experiments. Really slow emulsion (Approximately ISO 1/4 to 1/2), but this time has lots of detail in the areas the emulsion was even. The two dots at the bottom are bubbles in the emulsion, the even spacing is just a fluke.
This images was scanned off a quick print made from the neg, not a direct scan of the neg itself.
Shot with a Shen-Hao 4x5, Rodenstock Caltar II-N 240mm/5.6 lens. Exposure was f22 at about five and a half (5.5) minutes.