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Algae, spirulina (Spirulina maxima) anthotype by Marion Sidebottom

“Walk of Hope” by Marion Sidebottom
Country: UK
Parts used: Powder
Application: Brushing
Exposure time: 2 days
Month, season and year: August, Summer, 2022
Substrate: Hannemuhle Platinum Rag 300 gsm
Contrast of final print: ** (Medium)

Algae, blue (Spirulina maxima) anthotype by Marion SidebottomAlgae, blue (Spirulina maxima) for making anthotypesAmount: 1 tablespoon powder
Extracted using: N/A as already in powder form
Thinner: Tap water
Layers: 2
Used to create image: Positive on OHP film (2 stacked together), printed on inkjet from original photograph

Challenges or observations:
Difficult to get an even coating and avoid brushstrokes. Would be useful to try different ratios of powder to water, or mixing with alcohol to see if this makes a difference to the emulsion consistency. Vibrancy of the blue-green colours are is pleasing. Spirulina also worked very well for photograms of plants which had greater contrast.

Instagram: @marionseyephotoart

Any additional information you would like to share: I always feel thankful to nature and hopeful for the future when walking under trees; this is particularly important to me at the moment, after just completing 6 months of chemotherapy. This archway of Hornbeam trees was planted in 1977 to mark the Silver Jubilee of Queen Elizabeth at Anglesey Abbey in Cambridgeshire. Incredibly, she has just celebrated her Platinum Jubilee in 2022.

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Anthotypes – Explore the darkroom in your garden and make photographs using plants
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