Taken with paper negative, Ilford RC #3, 1/4 sec f:8. I shot this with my Grafex 4x5 through a double pane window, focused on the hillside (inset). I used my new Schneider Symmar 135/235 convertible.
scanned @800dpi flatbed
I was not expecting great resolution shooting through two panes of glass. I was actually more interested in the focal length effects of swapping the cells between the 100/175 and the 135/235.
This is 100% crop of inset.
The cell swap experiment was fairly unspectacular. No discernible advantage to swapping cells from one lens set to the other.
One swap gave me about 115mm and the other swap gave me close to 120mm.
On 4x5 the difference would be like changing from a 30mm to a 31mm on a 135 camera.