Submission of Entries for Trillium Clinics

Entries can be entered directly on the Trillium website.  Please see the next 2 lines for access to the detailed entry instructions, and for webpage direction to upload your images.  You can also access the image upload screen by choosing “Clinics” then “Upload Clinics” menu items.

For Instructions on entering your images to Clinics and changing your password:  Uploading-Clinic-Images-Online

Clinic Entries are uploaded via the website on this page:


New members may obtain their clinic number via an email to: [email protected] 

The full requirements for Clinic entries are outlined in the Member’s Handbook, but are generally as follows:

  • A maximum of 5 images per person per clinic may be entered
  • Images may be derived from digital cameras or scanned photographic images
  • All images must be the work of the maker
  • The images will be evaluated online

File Dimensions And Sizing

  • Submit images as JPEG files.  They will be projected in sRGB colour space
  • Maximum horizontal size is 1400 pixels
  • Maximum vertical size is 1050 pixels.  Smaller sizes are acceptable but will show smaller on the screen
  • Thus, a wide landscape image could be 1400 (horizontal) x 900 (vertical), and a portrait image could be 850 x 1050, as examples
  • The maximum file size is 3 MB.  Very few 1400 x 1050 images exceed that size, and most are under 1 MB.  There is no visible difference between a 2.9 MB and a 3.1 MB image
  • The Upload system will reject any images that exceed these criteria

Refer to the Tutorial on Resizing Images.  Mac users can also change image dimension directly in Finder.  Windows users can download and install the free IrfanView  or Faststone that allows basic processing, including resizing and resetting dimensions.

File Naming

You are no longer required to follow the naming convention for your filenames that we used previously.  It no longer matters what the filename of your image file is with the new Clinic Upload System.  You can just keep the name given by your camera if you like. However, if you do rename your files, please use only letters, numbers, underscores or hyphens.  If you rename your file please keep the filename under 25 characters in length.

There will be dropdown options on the Clinic Upload Page for Level and Category; these do not need to be included in the filename.

Levels are Bronze, Silver, Gold and Master
Categories are Pictorial, Nature and Creative
These are defined in the Member Handbook

Please Note:  that the entry deadline is as of midnight on the entry date and is a HARD DEADLINE.   The deadlines are on Tuesdays, to make them easier to remember, with usually a week between clinic night and the deadline.

Clinic  Category Guide Lines


The clinic committee has sought to simplify and clarify the category rules for clinics. These changes have been approved by the executive board. These amended rules will appear in the updated Handbook.

Below, I have included commentary throughout to illustrate why the changes were made. These appear in italicized, indented paragraphs. 

Many thanks to Janet Kempster, Janet McNally, and Geoff Dunn for their help in realizing this project. 

David Evans, Clinic Chair

Commentary on the revised rules is in the italicized, indented paragraphs.

  1. Pictorial

A pictorial image should express an idea, create a mood, or stir an emotionThe pictorial artistic quality of the image will be the main criterion evaluated.

We moved the essence of each category to its beginning. This emphasizes that for this category, the main criterion is the image’s pictorial artistic quality.

This is a “general” classification encompassing landscapes, seascapes, sunsets, etc. Included are photographs of architecture, industry, and agriculture. Photographs of cultivated biological subjects, domesticated zoological subjects, and nature images showing human elements and impacts of human activities belong in this category. Photographs of people, portraits and candid images are included.

Mostly unchanged, although we included the phrase “human elements and impacts of human activities” for nature images that show those elements. See further below under Nature. 

  1. 2.Nature

Nature photography is restricted to the use of the photographic process to depict observations from all branches of natural history, except anthropology and archeology.

The primary objective of this category is to depict an accurate record of the subject in its natural environment. The completed image should look “natural.” Techniques such as HDR and focus stacking are allowed if the result appears natural.  Full monochrome images are also allowed.

The inclusion of story-telling elements in nature images is strongly encouraged.

This was reorganized to put at the front the essence of this category. We took out paragraphs describing HDR and focus stacking to simply say that they are allowed if the result still looks “natural.”

When titling, the scientific names or common names must be used, with possibly a subject or action description such as “Great Blue Heron Preening.”  Refrain from overgeneralizing your title such as “Bird,” “Bee” or “Flower.” Catchy titles are not acceptable.

The titling part had appeared later in the description and was often missed by new members.

The only acceptable borders are keyline: 1- or 2-pixel borders, in a lighter or complementary colour to set off images with dark backgrounds.

Unlike CAPA but like the O3C, we do allow thin borders in nature where needed.

Included in this category are wild plants, wildflowers, ferns, fungi, algae, and lichens, etc., represented in their natural habitat (not cultivated or formally arranged), images of geological formations and specimens, astronomical images, and natural phenomena such as weather and special light conditions.

Also included are images of wild animals, birds, amphibians, reptiles, fish, insects, etc. The presence of scientific bands on wild animals is acceptable.

These paragraphs of what is included are pretty much unchanged.

Human elements and impacts of human activities should be avoided. These elements include not only people, vehicles, and structures, but also domesticated or cultivated plants, light pollution and artificial light, and any elements that have been cut or trimmed like grass, branches, or stumps.

This shows that the impacts of human activities should be avoided as well, including cut grass or tree stumps that were cut. Adapted from CAPA.

The exception is where these human elements are an integral part of the nature story and then must not exceed 10% of the total image area.

We adopted CAPA’s 10% rule for human elements and impacts of human activities. We decided not to give specific examples of integral elements.

Subjects must appear to be in their natural habitat regardless of where photographed. Backgrounds should be secondary to the subject unless illustrating habitat. Extreme close-ups or high magnifications are acceptable to illustrate detail. However, the main subject should still be easily identified and have a fairly realistic portrayal.

Computer manipulations such as adjustments to exposure, saturation, burning and dodging, spot removal and sharpness are permitted. Any other computer manipulation must be very minor, such as removing small distractions that in no way alter the authenticity of the original nature subject or scene photographed. Thus, backgrounds should not be artificially blurred.

We sought to emphasize that only small distractions can be cloned out and that backgrounds should not be artificially blurred.

Images of nature subjects that appear to fit the nature criteria must be entered in the nature category. If an image does not meet the post processing or content requirements for nature, it can only be entered into the pictorial or creative categories if it meets the criteria of those categories. 

While we reiterated this rule, we added that images with too much post processing or with content that doesn’t fit nature can go into pictorial as well as creative if they meet the criteria of those categories.

Respect for wildlife: good manners and a true respect for nature and all wildlife must be the paramount objective of any photographer. Close-up photography of nests of newly born birds and mammals is to be avoided as the process disturbs the nesting area and usually puts the young animals at risk. Shooting from a distance via a long telephoto lens is recommended for this type of photography.

  1. Creative

This category involves the manipulation of photographs using both in-camera and post-processing techniques to create an image that is a departure from reality using imagination and originality. The image title should complement or contribute to the vision or message being presented in the image.

Any subject or topic is acceptable in this category provided that the photographer took the original captured image and holds the copyright to it. The entrant must also have taken or created all components of the final image and performed all aspects of the post-processing of the submitted image.

Any in-camera and post-processing techniques may be used by the entrant. This includes combining multiple images and elements in a final image. Digital frame, pin-line, borders, and mats are permitted in this category.

While artwork or computer graphics generated by the entrant may be incorporated, images may not be constructed entirely within a computer. Furthermore, the photographic origin of the resulting image must be evident.

We sought to emphasize that the image should still look like it originated as a photograph.