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Reciprocity

Bergger Pancro 400 long exposures

What a metered time becomes on Pancro 400, and the stops it adds — worked out from Bergger’s own data, never past it.

Form T-2

Your metered time

Bergger: no correction below 1 s; open the lens +1/2 stop at 1 s, +1 at 10 s, +2 at 60 s

The maker’s reciprocity data ↗

Table 1

At a glance

Metered Expose for Added
1 s 1 s —

Longer times are beyond the maker’s table and are not published.

Other films with reciprocity data

Other films with reciprocity data

The reciprocity calculator ›