Does anyone know how much % grey the back lenscap is of an e-mount lens?

Started 5 months ago | Questions thread
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de7geitjes
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Does anyone know how much % grey the back lenscap is of an e-mount lens?
5 months ago

In some situations i forget my grey card but i always have an extra emount lens with me with that grey lenscap. So i thought maybe i can use that to correct white balance?

Edited 5 months ago by de7geitjes
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