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Iridescent cloud

A nice example of iridescence in high cirrus, seen in Leeds, March 2004.

[Dscn7210iridescent/Jpg]

Iridescent cloud [Leeds, 5:23:38pm Tue 23 Mar 2004; Nikon E995 digicam]

Lee photograhed these iridescent clouds between the houses on a walk down our street on a March evening. Within a few minutes they had all turned grey.

Iridescence is caused by sunlight diffracted through water droplets; these clouds are most commonly seen near the sun, in winter and over mountains (well, two out of three isn't bad).

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Image details

Photographer: Lee
Taken: Leeds UK, 5:23:38pm Tue 23 Mar 2004
Original format: 2048 x 1536 JPEG, 926 Kbytes
Camera: NIKON E995
Exposure: 1/582 sec * ISO100 * f8.20
Focal length: 31.00mm (macro ?)
Photodesk processing: Clipping; gamma

EXIF data produced by EXIFinfo

 DSCN7210/JPG
DSCN7210/JPG
Taken : 5:23:38pm Tue 23 Mar 2004
Camera : Nikon E995
Size : 2048 x 1536 pixels
Filesize : 926 Kbytes
 shooting information
Exposure : 1/582 sec at ISO100
f : 8.20
Focal length : 31.00mm
Bias : 0
Program : Normal
Metering : Pattern
Flash : Not fired
Orientation : x0,y0=left,top
Compression : 4
 nikond information
Quality : Fine
Colour mode : Colour
Image adjustment : Auto
Image sharpening : Auto
Saturation : 0
Noise reduction : OFF
Digital zoom : Off
ISO selection : Auto
ISO setting : ISO0
White balance : Auto
Focus mode : AF-C
Manual focus distance : Auto
Auxiliary lens : Off

© Lee Montgomerie / Chris Terran 2004
All images are copyright and may not be reproduced without permission
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