Exodies Posted November 18, 2015 Share #1 Posted November 18, 2015 Advertisement (gone after registration) My optical system automatically and subconsciously adjusts the observed brightness of a scene to fit it into a narrow dynamic range. Some people claim to be able to meter the light by eye in order to set a camera's shutter speed and aperture. How is this done? Is it possible (perhaps by yoga) to gain access to your own pupil size? oh dear. I now remember having asked this before. Could some kind admin please delete this thread? Link to post Share on other sites More sharing options...
Advertisement Posted November 18, 2015 Posted November 18, 2015 Hi Exodies, Take a look here The human lightmeter. I'm sure you'll find what you were looking for!
jaapv Posted November 18, 2015 Share #2 Posted November 18, 2015 No- but the human eye can judge differences in luminance fairly accurately. As long as one has a reference it can be done. Oil Spot Photometers worked on that principle. Link to post Share on other sites More sharing options...
pico Posted November 18, 2015 Share #3 Posted November 18, 2015 Funny, but someone did make a human lightmeter. It was a mirror with a row of pictures of eye pupils. The user just matched his eyes to the appropriate picture. Link to post Share on other sites More sharing options...
semi-ambivalent Posted November 18, 2015 Share #4 Posted November 18, 2015 Funny, but someone did make a human lightmeter. It was a mirror with a row of pictures of eye pupils. The user just matched his eyes to the appropriate picture. Those didn't work in Colorado. They were always out of calibration. s-a Link to post Share on other sites More sharing options...
Jeff S Posted November 18, 2015 Share #5 Posted November 18, 2015 Old TOP post....could be implemented much faster with digital technology... http://theonlinephotographer.typepad.com/the_online_photographer/train_your_brainto_guess_.html Jeff Link to post Share on other sites More sharing options...
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