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Introduction to Plant Photography

Introduction to Plant Photography. Purpose. Being able to use photographs to identify the species adds validity to the data collected and entered into the SE-EPPC EDDMapS. Photography. Learn the diagnostic characteristics of the invasive species

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Introduction to Plant Photography

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  1. Introduction toPlant Photography

  2. Purpose • Being able to use photographs to identify the species adds validity to the data collected and entered into the SE-EPPC EDDMapS

  3. Photography • Learn the diagnostic characteristics of the invasive species • Capture them in enough detail to make identification possible • Usually will require a series of photographs

  4. Common Characteristics Used for Identification Garlic Mustard Bicolor Lespedeza Seeds/Fruit Flowers

  5. Common Characteristics Used for Identification Nepalese Browntop English Ivy Whole Plant Growth form

  6. Common Characteristics Used for Identification Woody Plants - Leaf arrangement Chinese Privet Opposite

  7. Common Characteristics Used for Identification Woody Plants - Leaf arrangement Oriental Bittersweet Alternate

  8. Common Characteristics Used for Identification Woody Plants - Leaf shape Amur Honeysuckle Norway Maple Tree-of-Heaven Simple Lobed Compound

  9. Common Characteristics Used for Identification Unique Features Cogongrass Tree-of-Heaven Glandular Notch Pointed Rhizome

  10. Common Characteristics Used for Identification Unique Features Yellow Star-thistle Air potato Bulbils Thorns

  11. General Principles of Photography • To reduce shake, use a tripod when possible • Take multiple photographs of the same subject and choose the best one • Use the highest resolution and best quality images available with your digital camera • Images uploaded to system in JPEG format

  12. General Principles of Photography Position yourself so that the sun is over your shoulder for the best light (Frontlit image)

  13. General Principles of Photography If the sun is behind the plant (your are looking into the sun) then details of the plant may be lost in the shadows (backlit image)

  14. Frontlit image Backlit image

  15. General Principles of Photography • A flash can work when the natural light isn’t enough or coming from the wrong direction • Try adjusting your flash intensity

  16. Low intensity flash Removes shadows and illuminates detail without “washing out” colors

  17. Focal Plane • A plane parallel to the face of the camera’s lens in which everything is in focus (aka depth of field)

  18. Focal Plane

  19. Focal Plane

  20. Common buckthorn

  21. Camera Settings • Automatic settings are usually adequate • Manual setting options • Shutter Priority • Hand-held situations • Long exposure (with tripod) • Aperture Priority • Depth of field • In conjunction with macro • Macro (close-up)

  22. Aperture (F-stop) • The hole in the lens through which light passes (represented by an F-stop value)

  23. Aperture (F-stop) • Small F-stop numbers = large aperture = shallow depth of field • Large F-stop numbers = small aperture = large depth of field

  24. Aperture (F-stop) • Adjusting the aperture size can increase or decrease focal plane depth Small F-stop number

  25. Aperture (F-stop) • Adjusting the aperture size can increase or decrease focal plane depth Large F-stop number

  26. Large Depth of Field Shallow Depth of Field

  27. Japanese Honeysuckle

  28. Macro • Fine detail • Close-up

  29. Photographs to include • The form allows five images to be uploaded with each record entered • Identification images • Infestation/Landscape image

  30. Not Enough for Identification

  31. Not Enough for Identification

  32. An example set of images Cogongrass

  33. An example set of images Cogongrass

  34. An example set of images Cogongrass

  35. An example set of images Cogongrass

  36. An example set of images Tree-of-Heaven

  37. An example set of images Tree-of-Heaven

  38. An example set of images Tree-of-Heaven

  39. An example set of images Tree-of-Heaven

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