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fibre optics Answered

Hope to find here some information about Optical Fibres.
I am building an under water housing for DSLR. I want to use it just under the water surface. Controlling (through an air bridge) and exposure (through optical light guide) are on land.

The question is about optical fibres. I need a 160 cm long Fibre Optic Lightguide. A 1/4 inch diameter guide costs near 200 GBP. When I would make one myself of 1/2 inch diameter, I could safe 75 % + the entrance surface is more than 3 times larger, which is important, since I will have to guide the light of a flash gun! BUT, I doubt wether such a diy bundle of 1,5 mm diameter plastic fibres from ebay will give me roughly the same or preferably more light output as/than a professional guide?
How do these plastic ebay fibres compare to professional or glass fibres in terms of light transfer efficiency?

Any suggestions? If not, then a reference to another forum where they might be able to answer my questions, would be much appreciated.



4 years ago

Have you googled it?