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fotoscubo714

DIY LED focus light schematics

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Found this post on DPR that maybe of interest to those wanting to DIY a focus light. Although post is about topside unit, it should be able to adapt to an underwater version somehow.

 

http://forums.dpreview.com/forums/read.asp...essage=35983456

 

Just what I need, another project :unsure:

 

Bo

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Would be nice to find one that senses when the flash fires and turns off like the fantasea focus lights.

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Would be nice to find one that senses when the flash fires and turns off like the fantasea focus lights.

 

Hi Bill,

 

The OP claims the following on his design:

 

"....It is supposed to be used in dark environments to focus, and then it turns off automatically for the shutter and flash actuation. It also has a mode for continuous light, which is less impressive but handy for video or a poor man's flash. It runs on two 3V watch batteries and makes it 1000% easier to get an AF lock indoors in dim lighting. At the same time, it doesn't effect the image because it turns off automatically while the exposure is happening. I use it on my E-PL1, but it should work on ANY camera that triggers its flash shoe before an exposure...."

 

I hope you can find a way to use it underwater.

 

Cheers,

 

Bo

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