Making contact sheets

A contact sheet is not a small gallery. It is a working print.

I use it to see the roll at once. Which frames are worth a second look. Which frames are almost there. Which ones failed in a useful way. The sheet keeps the sequence intact, including the boring frames and the accidents.

Current setup

The enlarger is a Durst 138 with two Latico 240 condensers. It has a Kienzle Splitgrade head and I use the Heiland Splitgrade system for exposure and grade control.

My current baseline for contact sheets:

• 210 mm lens
• f/32
• 11 seconds
• grade 2.7
• Foma 312 paper, 30.5 × 24 cm

This is the default, not a law. It gives me a repeatable starting point. If the negatives are far away from normal density, the sheet will show that quickly enough.

Why this setup

The Durst 138 is overkill in a nice way. It has space, weight, and enough control to make the contact sheet feel like part of the printing process rather than an administrative step.

The sheet is also a calibration object. If the contact sheet is too thin, too flat, too blocked, or simply awkward to read, that tells me something before I spend time on a single enlargement.

What I look for

First I look for the obvious candidates. Then I look at the almost-frames.

Contact sheets are good at showing rhythm. A single frame can look better when it is removed from its neighbors. On the sheet it has to sit in the sequence. That is useful. Sometimes the frame I thought I wanted is only the frame after the real one.

I also use the sheet as a check on the physical process: negative density, dust, scratches, uneven contact, and whether the chosen default exposure still makes sense.

Still to document

This is the first version of the process note. I still need to document the physical sandwich: how the negatives are arranged, how they are held flat, and what I change for different film formats or difficult negatives.

See also: Photography, Contact sheet, Processes, Workbench