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I am trying to image an object immersed in water in a clear plastic enclosure at high speeds. It is quite easy to image the object through the plastic enclosure. However, when we image the object through the water in the plastic enclosure, the image is blurred. We are hoping for a solution to this. Is there a water immersion lens that we can use and where can we get it? Any alternative solutions?

2 Answers

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  • = Answered Questions

Charlie Dijak
Epix, Inc.
cad [at] epixinc [dot] com
(847) 465-1818

What is it about the water that creates blur? Are you required to use a longer exposure time? Is the water dirty or cloudy? What frame rate do you need? What resolution is required? What are you using for illumination? What f/stop are you using? How large is the object? What is the distance between the camera and the object? If the water is crystal clear, and if you are using the same exposure time as when you capture images without the water, then what has changed? Why do you think you are getting more blur? If you can answer these questions then I'll do my best to offer you an alternative solution.

Perry West - President
Automated Vision Systems, Inc.
perry [at] autovis [dot] com
(408) 267-1746

Objects immersed in water have been imaged clearly. As a scuba diver I see many extraordinary pictures taken in the water. Certainly the clairty of the water is critical, but I'll assume that problem, if it existed, would be obvious to you. It's also possible for water turbulance to be an issue, but, again, I believe you would see this yourself. Is it possible that you have light reflecting off the surface of the enclosure and reaching the camera's lens, and that would degrade the image.

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