I have three more scans of my experimental D23 two bath development and this is one of them. The development is N-1, so a contraction of one stop in subject brightness range. This is achieved by developing first in Kodak D23 developer, undiluted, for 6:00 minutes. Then the film is transferred to a second bath of a borax solution, for 4:00 minutes. Both solutions were at 24C. This provides good mid tone separation while restraining highlights. This was my first attempt at this, and I ran a batch of a dozen sheets of Kodak Tri-X Pan that I shot last summer. Some examples from this batch were posted here several days ago, and now I will present three more.
This one was taken in the abandoned Quiet Nook School. I thought is was a good test opportunity as the interior was in low light, and the exterior, visible through the windows was quite bright. The film was slightly over exposed, achieved by rating it at 250 iso, rather than the box speed of 320 iso.
I shot this on June 1st 2025 at about 3:30 in the afternoon. I used my Ebony SV45TU view camera and a Schneider 135mm lens. The exposure was for 1 second at F14.0. The exterior, visible through the windows, was spot metered and had an exposure value of around 10. The darkest areas around the desks were a full seven stops lower, with an exposure value around 3. The upper walls and the brighter areas of the desks were metered at an exposure value around 6. The exposure used rendered these values as middle grey. The contracted development held the windows down 1 stop, so that they fell 3 stops above middle grey [Zone 8] rather than 4 stops above [Zone 9].

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