• Ultraviolet Photography
  •  

Blackberries

3 replies to this topic

#1 KaJashey

    Member

  • Members
  • 22 posts

Posted 05 August 2020 - 12:57

The last blackberry flower falling apart and some green unripe blackberries taken earlier this summer.

Camera was a Nex 5. Filter was a La La U by UVIRoptics. Lens was an adapted Nikon AF-S 35mm DX ƒ/1.8 at ƒ8 or so. 2 second exposure Iso 200. Edit was with photo ninja.

Attached Images

  • Attached Image: _DSC4755_v1.jpg

Edited by KaJashey, 05 August 2020 - 13:00.


#2 Andrea B.

    Desert Dancer

  • Owner-Administrator
  • 8,676 posts
  • Location: UVP Western Division, Santa Fe, New Mexico

Posted 05 August 2020 - 18:15

Those were green, unripe berries? Yet they are very UV-absorbing. The UV-absorbing anthocyanin pigment which gives the ripe berries their dark color must be underlying the green surface? I am wondering how that all works. Must go read up. :grin:

Interesting also that the blackberry surface also produces UV specular reflections.
Andrea G. Blum
Often found hanging out with flowers & bees.

#3 nfoto

    Former Fierce Bear of the North

  • Owner-Administrator
  • 3,150 posts
  • Location: Sørumsand, Norway

Posted 05 August 2020 - 23:20

Andrea, Rubus species typically have a thin waxy cuticula on their (false) fruits. Thus they are prone to specular reflections also in visible light.

#4 Cadmium

    Member

  • Members+G
  • 4,141 posts

Posted 06 August 2020 - 04:37

KaJashey, Well done! :smile:
I think I might have that lens.