Beto Marinelli
Cyanotype workshop

Make two prints to take home

Cyanotype is one of the earliest photographic processes — invented by Sir John Herschel in 1842.

Coating watercolor paper with yellow cyanotype sensitizer — iron salts brushed on before UV exposure UV LED exposure under glass with botanical masks — cyanotype turning pale under blue light Finished Prussian-blue botanical cyanotype prints on a wooden easel
Coat → expose → final print

You coat paper with iron salts. UV light turns them into Prussian blue — that deep blue pigment.

That same blue later gave us the word blueprint: from the 1870s, architects and engineers used ferro-prussiate paper to copy drawings cheaply.

The chemistry is safe and unharmful — made for adult and family sessions (kids welcome).

1 A shadowgram

Shapes you arrange on the paper in the light.

2 A picture of yours

Send it before, or bring it. We make the negative.

With Cris and Beto

Dates by Enquire when announced — curated sessions with Cris and Beto.

HK$500 per participant

Enquire How it works