Helleborus niger flower [UV]

Helleborus niger flower [UV]

Description

Title:
Helleborus niger flower [UV]
Caption / Description:

Ultraviolet photo of a Helleborus niger flower. The flower here is both backlit and frontlit, though the backlighting contributes little to the brightness of the flower. While the sepals are partially translucent in visible light (and more so in infrared), they appear to be relatively opaque in ultraviolet.

The sepals also appear darker in ultraviolet (when compared to the rest of the plant) than they do in visible light.
The plant is commonly known in English as the Christmas rose, and flowers from mid-winter to early spring. In visible light the flowers are white, gradually turning a green color as they age.

Tags / Keywords:
  • Biota
  • Life
  • Vitae
  • Eukaryota
  • Plantae
  • Plants
  • Magnoliophyta
  • Flowering Plants
  • Angiosperms
  • Magnoliopsida
  • Dicotyledons
  • Buttercups
  • Ranunculales
  • Ranunculaceae
  • Helleborus
  • Ultraviolet
  • UV Photography
  • Helleborus niger
  • Christmas rose
  • Black hellebore

Admin

Date Original Photo Taken:
Original File Name:
DSCF2039a.psd
Event:
Rating:
☆☆
Date this image added/last updated on website:
Original File Dimensions:
4896px x 3264px
File Type:
JPEG
Color Mode:
Original Image Color Profile:
sRGB IEC61966-2.1

Location

Location Created:
Sublocation:
City:
Market Harborough
Province/State:
Leicestershire
Country:
United Kingdom
World Region:
Europe
Geo-location:

Rights

Copyright Status:
Copyrighted
Licensing Status:
Rights Managed
Available for Editorial Use:
Yes
Available for Commercial Use:
Yes
Copyright Notice:
© 2015 Dave Kennard

Camera Data

Date Digital Resource was created:
Shutter speed:
1⁄160 s
Aperture:
f/4
Camera Model:
Fujifilm X-M1
ISO:
640
Exposure Compensation:
0
Focal Length:
50mm
Focal Length (35mm equiv.):
75mm
Metering Mode:
Multi-segment
Flash:
Off, Did not fire
Exposure Mode:
Manual
White Balance:
Manual
Light Source:
Shade
Exposure Program:
Manual

Additional shooting metadata

Lens:
Nikon EL-Nikkor 50mm F2.8 N
Filters used:
  • Baader U
Additional Optics used:
  • Pixco M42-FX/M
Setup:
Tripod, geared head, focusing rails.
Sheet of 0.25mm PTFE used as background with full spectrum modified Vivitar 283 Flash firing through it at full power from behind. Front lighting from a handheld full spectrum modified Vivitar 283 flash at full power.

Post Processing

Image Modified:
Software used:
  • Adobe Camera RAW
  • Adobe Photoshop 2014
Post Processing:

RAW processed through ACR, modifying white balance
Background set to pure white using combination of curves and white color fill layer in PS CC
Contrast increased slightly using Curves adjustment in PS CC