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Hi,

I have try to reproduce your result. I have done this experiment. Experimental and setup is :

image description

First I use luxmeter to check experimental procedure. Results are good

image description

Then I have done same experiment using my basic webcam :

image description

I should investigate a little because CCD sensivity is linear (sometime logarithmic but I don't think in basic webcam). Problem is in electronics amplification and conversion...

Hi,

I have try to reproduce your result. I have done this experiment. Experimental and setup is :

image description

First I use luxmeter to check experimental procedure. Results are good

image description

This experiments is a video. Signal versus index file in video is

image description

You can download video here

Then I have done same experiment using my basic webcam :

image description

I should investigate a little because CCD sensivity is linear (sometime logarithmic but I don't think in basic webcam). Problem is in electronics amplification and conversion...

Hi,

I have try to reproduce your result. I have done this experiment. Experimental and setup is :

image description

First I use luxmeter to check experimental procedure. Results are good

image description

This experiments is a video. Signal versus index file in video is

image description

You can download video here

Then TThen I have done same experiment using my basic webcam :

image description

I should investigate a little because CCD sensivity is linear (sometime logarithmic but I don't think in basic webcam). Problem is in electronics amplification and conversion...

his experiments is a video. Signal versus index file in video is (red curve maximum in each frame blue curve mean around maximum)

image description

You can download video here