Tag: physical

• February 12, 2026

  LIGHT

  Light is the catalytic variable in cyanotype, driving the photochemical reduction of ferric iron (Fe³⁺) to ferrous iron (Fe²⁺). Ultraviolet wavelengths are primarily responsible for initiating this reaction, meaning exposure intensity, spectral quality, and duration directly determine image density and tonal separation. Insufficient UV results in weak, low-contrast prints, while overexposure compresses highlights and reduces…
• February 9, 2026

  SEE POSITIVE

  After a few minutes in UV light, the chemicals begin to react. As this happens, the image changes. What started as a digital image slowly turns into a physical work. Light activates the surface, and the picture becomes clear. Shadows and highlights switch places, revealing the final print.