technical stuff

Half-full or Half-empty

If you weighed a 10-lb bag of potatoes and found that it weighed only 5 lbs, would you be concerned?

If a store clerk said that a 10-lb bag of potatoes weighs 10 lbs only if you buy it in the morning, would you be confused?

Let’s talk about camera flashes, in this case, the Nikon SB-800.

I was shooting a photo today with a Nikon D3 and an SB-800 flash manually set to 1/2-power. Deciding to add more flash, I upped the flash to full power. Surprise! The flash exposure remained the same. What’s going on and where’s my extra light?
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