Q&A: FLASH AND GUIDE NUMBERS

Drew. Sunlight with Fill Flash. Photo © Jim Doty Jr.

Sunlit Portrait with Fill Flash. Photo © Jim Doty Jr.

Today’s question is brought to you by Powdermilk Biscuits.

Wait – wrong show. My apologies to Prairie Home Companion. (The delightful movie was on TV recently.)

Today’s Q&A is for all of you that learned to use Guide Numbers and manual flash exposure. If you are a little rusty in that department, or if you were weaned on TTL flash, you can brush up on how to use the guide number (GN) for your flash to determine a manual flash exposure by reading the Flash Basics article at my photography web site.  If you are a little rusty with f-stops and exposure, go here.

Now for the Q&A:

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