iPhone Night Mode

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iPhone Night Mode

Postby ohiocaver » Feb 11, 2020 1:17 pm

Has anyone used their iPhone underground with the new Night Mode setting? What's your experience been? What kind of lighting did you use? What distance to the subject worked or was too far?
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Re: iPhone Night Mode

Postby bobby49 » Feb 11, 2020 10:40 pm

Rather than an iPhone, many cavers use a headlamp with different intensity levels selectable. For sitting or resting or eating a snack, I need only 5-10 lumens. For a small passage with crawling, I need only 50-100 lumens. For a large passage with features to look for (like survey markers), I need 1000 or more lumens. If I need to do photography with continuous light, then I use 10,000 lumens.
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Re: iPhone Night Mode

Postby NZcaver » Feb 12, 2020 5:01 am

I think he's asking about using the iPhone for taking cave photos, not for using as a flashlight.
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Re: iPhone Night Mode

Postby ohiocaver » Feb 12, 2020 9:46 pm

Either it was a joke - or some people just should not be allowed around technology!
Then again, I have some old photo cubes I could sell him... :big grin:
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