Guide number for G1X built-in flash

Started May 4, 2012 | Discussions thread
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Ron Hirsch
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Guide number for G1X built-in flash
May 4, 2012

Canon does not give much information re the guide number for the G1X.

They give a distance range for wide angle, and telephoto, but do not mention what ISO that relates to.

I'm going to run some tests myself with a flash meter.

Does anyone have any information re what they may have measured, or seen listed anywhere?

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