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Photographer’s Note

Subtitle: RAINBOW & LUPIN

Some time ago I had a posting in Forum, enquiring about possible effects by photographing rainbows with POL-CIR filter.

My first experience with this was last year, when I photographed this magnificent rainbow as I was driving across the Dovrefjell mountain plateau. At least I thought so. When I downloaded the pictures upon my return home I discovered to my surprise there was no rainbow!

A POL-CIR filter will remove some of the light reflected from for instance water. A rainbow is water, but the question is weather the light is refracted, reflected or maybe a bit of both.

By coincident I made a discovery while photographing a rainbow last month. By full polarizing effect and camera in landscape position I get great rainbow images. However as I turn the camera 90 degrees clockwise to portrait format the rainbow disappears, but only through the viewfinder as it is still there in front of me…

Anyone around with similar experiences?

Anyone with an explanation to what I have described above?

The image shown here is slightly underexposed, photographed with a polarizing filter and cropped.

File size: 172,3 KB
Creation date: 18.08.2009 17:58
Last modification: 19.08.2009 18:57
Make: NIKON CORPORATION (http://www.nikon.com)
Camera: NIKON D300
Lens: AF-S DX VR Zoom-Nikkor 18-200mm F3.5-5.6G IF-ED
Software: Ver.1.00
Dimension: 455 x 600 px (0.3 MP, 3:4)
Focal length: 70 mm (equiv. 105 mm)
Aperture: F8
Exposure time: 1/30" (-0.33 EV)
ISO speed rating: 200/24°
Program: Aperture priority
Metering Mode: Pattern
White Balance: Auto
Focus Mode: AF-S
Image Stabilizer: On
Noise Reduction: Off
Flash: Flash did not fire

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Additional Photos by Pablo Minto (pablominto) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 8631 W: 310 N: 11737] (41084)
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