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2026-10-18 issue

Observed arrival · 2026-10-18

The Cyano Codex: Cyanotype in Spanish, from Chemistry to Blue

cyanocodex.com Visit website
Editorial interest 78/100 Selection signal · not a rating of the site

A Spanish-language cyanotype reference with practical guides, free browser-based tools, and a blog about the process and its history.

Landing page captured for the 2026-10-18 issue.
For
Spanish-speaking cyanotype learners and printmakers
Worth noticing
The site says its negative-preparation tool processes photos in the browser rather than uploading them to a server.

Field notes

The navigation separates learning material into chemistry, exposure, negatives, supports, safety, and conservation, then places working aids alongside it. Listed aids include a solution calculator, an exposure log, and a troubleshooting guide; the site describes its buying guides as organized by use rather than product ratings, and says they are not based on its own product tests. It also says pages cite sources and that disagreements between sources are presented rather than silently resolved.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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cyanocodex.com

Landing page observed 2026-10-18. The live site may have changed.