larry_norris2 Posted April 7, 2008 Share Posted April 7, 2008 The other day I was photographing baby sandhill cranes through a chain link fence. I was using a D200 with a 600mm w/a 1.4 on a tripod with the lense shade about 2 inches from the fence. As I have previously experienced, the photos show no evidence of the fence unless there would be a slight loss of contrast that would have to be measured by instrumentation. However, it was a dewy morning and when I downloaded the photos on the computer, some of the dew drops 50-100 feet away showed the distinctive pattern of the chain link fence. How and why? Larry Link to comment Share on other sites More sharing options...
michaelging Posted April 7, 2008 Share Posted April 7, 2008 They were showing as flare. Link to comment Share on other sites More sharing options...
bobatkins Posted April 7, 2008 Share Posted April 7, 2008 You could see dew drops 100ft away? How big were they. I don't understand your question, but I can say that small water droplets will act as lenses. Link to comment Share on other sites More sharing options...
tmcleland Posted April 7, 2008 Share Posted April 7, 2008 Any chance we could see the image? Link to comment Share on other sites More sharing options...
mkelton Posted April 7, 2008 Share Posted April 7, 2008 I think I have had someting similar While photographing a baseball pitcher from behind the backstop. I was careful to shoot "through" the chainlink, using a 70-200mm. It was about 1 p.m. with sun directly overhead (an unusual time of day for a H.S. baseball game). I kept getting flare off the chainlink. Could be, in your case, the sun was flaring off dew on the fence. THe shade might not have helped at only two inches away. Just a thought. Link to comment Share on other sites More sharing options...
rnt Posted April 7, 2008 Share Posted April 7, 2008 I'd guess it was a bokeh effect- you probably saw the fence pattern in the out of focus highlights of the distant dew drops. Remember folks, he's shooting with a 600mm lens. Makes faraway things big! You get an equivalent effect with mirror lenses- the central mirror creates donut shaped highlights. Link to comment Share on other sites More sharing options...
larry_norris2 Posted April 7, 2008 Author Share Posted April 7, 2008 To clarify my question: A. It was not flare off the lens B. The camera lens combo was equal to 1260mm so I could see the drops. C. There was no dew on the fence D. In all the cases that I have seen where the water drop acts as a lens, the subject in the drop is behind the drop and not between the drop and the camera Link to comment Share on other sites More sharing options...
bobatkins Posted April 8, 2008 Share Posted April 8, 2008 We need to see the image. I still can't visualize what you're describing. Robert may be correct. You would see the fence pattern in out of focus highlights. They show the shape of the aperture including any obstructions. Link to comment Share on other sites More sharing options...
petemillis Posted April 8, 2008 Share Posted April 8, 2008 Possible reflections of the fence in the water drops - further away so would be in focus, whereas the nearby fence is out of focus. Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted April 8, 2008 Share Posted April 8, 2008 Visualizing the image without seeing it first is called vokeh. Its what folks do while dreaming; designing; or before shooting an image. Vokeh is different in each persons mind. Link to comment Share on other sites More sharing options...
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