Traditional Culture Encyclopedia - Photography major - What is the general sensitivity used in black and white photography? High or low?

What is the general sensitivity used in black and white photography? High or low?

In black and white photography, you need to use different ISOs depending on what you want to express. For general portraits, due to the need for comprehensive adjustment in grayscale issues, it is best to use ISO Below 500, if the exposure is not enough for black and white photography, you can use high ISO, but

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As a problem, I suggest you use 100 or 200

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