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morefigs / py-ic-imaging-control

Python wrapper for the IC Imaging Control SDK from The Imaging Source (TIS)
MIT License
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How to know the absolute exposure time by using exposure.value? #28

Closed YongMa1988 closed 6 years ago

YongMa1988 commented 6 years ago

I just want to know how to change the exposure time. I found the exposure.value which is within the range of (-13,4). But what does the value range mean? For example, what is the absolute exposure time of -4?

morefigs commented 6 years ago

I believe it's different for different cameras, so I don't know the exact mapping. You could compare values to those in the proprietary configuration software.

YongMa1988 commented 6 years ago

Thanks, from the IC capture software, the max and min exposure time are 1/10000 and 30 seconds. So I guess the exposure time should be 2^exposure.value, at least it's close to that. 2^-13 is 1.22e-4, but 2^4 is 16, almost half of 30.