02 · 02·Curve
reading the graph instead of enduring it
Reading 4 min·Verified 2026-05-19
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02.01 · Curve
Tonal analysis
02.04 · Curve
The 25-point curve
02.03 · Curve
Manual adjustment
00.02 · Getting started
Understanding a test chart
Outil de calibration pour tirages en cyanotype, platine-palladium, Aquaprint, charbon et autres procédés photographiques. Mesurez la mire, corrigez la courbe et exportez le preset .acv en quinze minutes. Inscription gratuite avec accès au workflow complet (quotas limités, 100 MB de stockage cloud synchronisé). Abonnement Pro 9,90 €/mois pour les quotas étendus (500 MB) et les fonctions avancées. Un an de Pro offert à l'achat d'un Luminograph chez Vision Picturale.
Calibration tool for cyanotype, platinum-palladium, gum bichromate, carbon and other alternative photographic processes. Measure, correct and export a .acv preset in fifteen minutes. Free tier with signup (full workflow, limited quotas, 100 MB cloud sync). Pro subscription 9.90 EUR/month for extended quotas (500 MB) and advanced features. One year of Pro included with a Luminograph purchase from Vision Picturale.
