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John Ewing | all galleries >> Galleries >> La Porte de l'Enfer / Barn Door Saga > His Dark Materials
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03-Aug-2022

His Dark Materials

Acétate de fer à gauche, du thé à droite.

L’acétate vient de la réaction entre de la laine d'acier 000 et le vinaigre 14%. Il réagit sur les
tanins dans le bois en les noircissant. Cependant, le bois d’épicéa tel que j'ai acheté n'a pas
beaucoup de tanins alors on le peint d'abord avec du thé pour renforcer la réaction.


Iron acetate on the left, tea on the right.

The iron acetate comes from reacting 000 fine steel wool with 14% vinegar and putting it through a
coffee filter, the tea comes from (ta-da!) tea-bags, about 20 per 1½ litres of water. The acetate
darkens the tanins in wood, but light softwoods don't have that much so the tea supplies more. The
tea goes on first then the acetate, and then the magic happens.

Motorola Moto G8 Plus
1/104s f/1.7 at 4.7mm iso100 hide exif
Full EXIF Info
Date/Time03-Aug-2022 14:32:33
MakeMotorola
Modelmoto g(8) plus
Flash UsedNo
Focal Length4.7 mm
Exposure Time1/104 sec
Aperturef/1.7
ISO Equivalent100
Exposure Bias0.00
White Balance0
Metering Modecenter weighted (2)
JPEG Quality (5)
Exposure Program0
Focus Distance

other sizes: small medium original auto
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