Polaroid · ISO 640 B&W negative

Polaroid 8x10 B&W

B&W negative ISO 640 Discontinued Instant

Notes are still being written

We're hand-writing every entry in this catalog, one at a time, to keep them accurate and worth reading. Polaroid 8x10 B&W is in the queue.

The specs on the right are correct and the app already supports this stock today, including the reciprocity behavior. No reciprocity correction needed; metered time is the shot time.

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How the app handles this stock

  • Box speed: ISO 640. Picker exposes pull/push chips so you can shoot it at any speed you want and the meter follows.
  • Reciprocity: No reciprocity correction needed; metered time is the shot time.
  • Expired film: if you load an old roll, set the expiry year and storage in the app and the ISO scales for you. B&W negative decay rates are baked in.

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