Ultraviolet garden

Following my first proof-of concept attempt at UV photography yesterday, I went out around campus again today with a tripod and remote. I got some much better shots of flowers and the campus. This time I’ve left the photos exactly as they came off the camera. Near violet UV records in the blue channel, and deeper UV in the red channel (For reference the dandelion outer ring has a reflectance peak around 350 nm, recorded here in the red channel).

A newly opening dandelion with the strong UV ring.

A white clover flower.

Unknown white flowers with little UV. Anyone know what they are?

Buttercups also have a strong UV pattern.

Ultraviolet campus


7 Responses to “Ultraviolet garden”

  1. 1 Ted C. MacRae May 5, 2010 at 11:08 pm

    The buttercups are really different from their visible light appearance.

  2. 2 Mike Bok May 6, 2010 at 11:25 am

    Yeah, they were a nice surprise to see on the preview screen; very striking.

  3. 3 Roberta May 12, 2010 at 5:04 pm

    I have always wanted to try this. It is helpful to see your results with different techniques.

  4. 4 Mike Bok May 13, 2010 at 11:34 pm

    Roberta, this website has a lot of useful info about UV photography.


    Just don’t get confused by his photos. The red areas he has in the center of the flowers are not the UV reflectance, the white parts are. He does some post processing to get the shots to look like that (and it confused the hell out of me at first).

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I have moved.
Arthropoda can now be found here.

Michael Bok is a graduate student studying the visual system of mantis shrimp.

Flickr Photos


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