lets say the ISO is 400, then the totality shot with a f6.3 would be 6 seconds? with my F4 vixen it would be 2 or 3 seconds.
When half and half It would be still 1/1000 sec shot, my shots I posted were iso 200 at 1/750 and 1/1000 so there is a benefit of having a slightly higher ISO setting, but would this be at the expense of more grainier images?
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