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This photo is taken with a filter that allows a little more than UV light through, without the filter it would appear out of focus because UV light is travelling on a different wavelength and the lens is made to focus the visible light spectrum.
Sorcery! That must be the reason a lot of photos from deserts taken in the middle of the day look a bit soft. I'm sure heat doesn't help either.
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In reflected UV photography the subject is illuminated directly by UV emitting lamps (radiation sources). A UV transmitting, visible light blocking filter is placed on the lens, that allows ultraviolet to pass and absorbs all visible light. Examples of these filters are Kodak Wratten 18A, B+W 403, Hoya U-340, Baader U-Filter and Kenko U-360. These filters are made from special colored glass. Most types of glass will allow long wave UV to pass, but absorb all the other UV wavelengths, usually from about 350 nm and below. Only special developed lenses made of quartz (fused silica) or quartz and fluorite can be used. Using these lenses allow the camera to reach the range 180..200 nm. Lenses based purely on quartz show a distinct focus shift between visible and UV light, whereas the later developed fluorite/quartz lenses are fully color corrected without focus shift. Examples of the latter type are the Nikon UV Nikkor 105 mm, the Hasselblad (Zeiss) UV Sonnar 105 mm and the Asahi Pentax Ultra Achromatic Takumar 85 mm.
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A polarising filter helps in desert light, it's also helpful with foliage and water. A circular polariser can reduce the metered light by a stop or two because it's blocking reflected light traveling in one direction. It's also very useful for photographing shiny panels in bright light (cars etc.)
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Looks like I have found a winner: Think Tank Airport Essentials. Does what I need, and I love the inbuilt lock. Nice touch.
Ben, soon:
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Further to greens and my GXR
4 Attachments
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Road champs in Glasgow.
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Which reminds me, I used the miniature effect from the camera's creative filters on the top one, I think it looks cool, but I suspect it's quite amateur...
http://www.flickr.com/photos/63370265@N04/9358885054/sizes/l/in/set-72157634777996482/
http://www.flickr.com/photos/63370265@N04/9358815772/sizes/l/in/set-72157634777996482/
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Anyone else seen this? https://www.picfair.com/ Stock library were you set your price per image, for one use only. Interesting business model. I've uploaded some pics here already. Worth a punt I guess.
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Anyone else seen this? https://www.picfair.com/ Stock library were you set your price per image, for one use only. Interesting business model. I've uploaded some pics here already. Worth a punt I guess.
Nice one, been looking for an ethical stock site to upload to
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excellent.
Cheers. One of the only shots I'm completely happy with.
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sorted my portfolio which I will probably be tweaking a lot in the next few days:
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Recently I've been going out early mornings to try and take pictures, nothing good yet but here are a few anyway.
Untitled by 40 skid patches, on Flickr
Untitled by 40 skid patches, on Flickr
Untitled by 40 skid patches, on Flickr
Untitled by 40 skid patches, on Flickr
Untitled by 40 skid patches, on Flickr
Well_is_it
NotThamesWater
Airhead
Oliver Schick
withered_preacher
i_am_lono
Cyclodunc
kboy
ObiWomKenobi
photoben
spenceey
branwen
dan531c
Ordinata
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Digital photography
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A polarising filter can help with foliage. If you use a uv filter on a uv sensitive colour you can see the high amounts of UV light too. Most cameras are only a little uv sensitive but I can't see how it couldn't be a factor with foliage.
This photo is taken with a filter that allows a little more than UV light through, without the filter it would appear out of focus because UV light is travelling on a different wavelength and the lens is made to focus the visible light spectrum.
1 Attachment