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Anthotypes & Other Organic Processes I

at Penumbra Foundation

Course Details
Start Date:

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Virtual Classroom
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Class Level: All levels
Age Requirements: 18 and older
Average Class Size: 6
System Requirements:

You will need a reliable Internet connection as well as a computer or device with which you can access your virtual class. We recommend you arrive to class 5-10 minutes early to ensure you're able to set up your device and connection.

Class Delivery:

This class will be held via Zoom unless otherwise specified.

Teacher: Anne Eder

What you'll learn in this photography class:

This class is an introduction to plant-based photographic processes! It will cover anthotypes, chlorophyll printing, lumens, and phytograms. We will meet via online platform once a week for demos and students will then take what they have learned and complete that week’s assignment, returning for critique and a new demo each week. 

  • Anthotypes date back to the 19th century and that intrepid gentleman scientist, Sir John Herschel. An emulsion is made from fresh plant material, coated on paper, and exposed using the sun.
  • Chlorophyll printing is related to anthotype printing, but instead of using plant juices to create an emulsion, an image is created directly on leaves using an object, stencil, or positive transparency.
  • Lumens are camera-less prints made using plant materials in direct contact with black and white silver gelatin photographic papers to create wildly colored and unpredictable prints of great beauty.
  • Phytograms are similar to lumen prints but are made by using an organic and nontoxic chemistry and plants on film. This can then be developed and printed. 

At our wrap up class, we will discuss presentation options and preservation of these ephemeral images. 

Remote Learning

This course is available for "remote" learning and will be available to anyone with access to an internet device with a microphone (this includes most models of computers, tablets). Classes will take place with a "Live" instructor at the date/times listed below.

Upon registration, the instructor will send along additional information about how to log-on and participate in the class.

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Refund Policy
  • In the event a student must cancel their registration for a workshop, they may do so any time before and up to 15 business days prior to the workshop start date, and will receive an 85% refund.
  • In the event a student must cancel attendance from a workshop within 15 business days prior to the start of the workshop this will be considered a withdrawal and the student will receive a 50% refund.
  • A withdrawal made within 4 business days of a class will NOT be entitled to any refund.

Please provide us with as much advance notice as possible for consideration. Beyond this, we cannot be held responsible for any cancellations outside of our control.

Unless otherwise stated, classes need a minimum of three students to run. In the off chance that a class is cancelled due to low enrollment, you will be refunded 100% of your tuition. Tuition costs for cancelled workshops can also be transferred to other classes or workshops.

We are not responsible for any non-refundable travel costs (such as airfare, train tickets or accommodation costs). If you are traveling long distances or from out of state, we advise you to consider purchasing travel insurance as workshops may be cancelled or postponed due to low registration or other unforeseen circumstances.

Due to the intensive nature of our workshops, we cannot offer makeup sessions outside of workshop time or in future workshops. Instructors are not required to bring students up to date during scheduled workshop time for missed days or lateness.

Refunds will not be given for absences or no shows. *This includes any illness or absence related to Covid 19.

In any event where a customer wants to cancel their enrollment and is eligible for a full refund, a 5% processing fee will be deducted from the refund amount.

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School: Penumbra Foundation

Penumbra Foundation

The Penumbra Foundation is a non-profit photographic arts organization whose mission is to bring workshops and greater education, lectures, and events to a diverse and evolving international photographic community. Our scope spans photography from its 19th century invention to the present age.


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