# \#film

**URL:** https://scanalyst.fourmilab.ch/tag/film/790.md

[Latest](https://scanalyst.fourmilab.ch/latest.md) · [Categories](https://scanalyst.fourmilab.ch/categories.md) · [Tags](https://scanalyst.fourmilab.ch/tags.md)

---

## [Photographic Film Manufacturing at Kodak (3): Slicing, Perforating, Spooling, and Packaging](https://scanalyst.fourmilab.ch/t/photographic-film-manufacturing-at-kodak-3-slicing-perforating-spooling-and-packaging/3174)

<div class="topic-metadata">

**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 1\
**Last updated:** [15 May 2023 12:59 UTC](https://scanalyst.fourmilab.ch/t/photographic-film-manufacturing-at-kodak-3-slicing-perforating-spooling-and-packaging/3174 "2023-05-15T12:59:53Z")

</div>

Silver is expensive, and great pains are taken to recycle very bit used in coating film that doesn’t reach customers. This even includes the sprocket holes punched in 35 mm film at the rate of 384,000 hole…

---

## [Photographic Film Manufacturing at Kodak (2): Photosensitive Emulsion Coating](https://scanalyst.fourmilab.ch/t/photographic-film-manufacturing-at-kodak-2-photosensitive-emulsion-coating/1725)

<div class="topic-metadata">

**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 2\
**Last updated:** [23 July 2022 10:33 UTC](https://scanalyst.fourmilab.ch/t/photographic-film-manufacturing-at-kodak-2-photosensitive-emulsion-coating/1725 "2022-07-23T10:33:02Z")

</div>

We call it “film”, but the part of photographic film that does the work is the microscopically thin photosensitive emulsion which the film (or, previously, glass plate) serves only to carry. Colour film ca…

---

## [Think Positive—Black and While Photographic Printing](https://scanalyst.fourmilab.ch/t/think-positive-black-and-while-photographic-printing/597)

<div class="topic-metadata">

**Author:** [@johnwalker](https://scanalyst.fourmilab.ch/u/johnwalker)\
**Replies:** 0\
**Last updated:** [19 December 2021 17:10 UTC](https://scanalyst.fourmilab.ch/t/think-positive-black-and-while-photographic-printing/597 "2021-12-19T17:10:05Z")

</div>

Now I finally understand how polycontrast or variable contrast photographic paper works!