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Occasional Contributor
Posts: 5
Registered: ‎01-04-2017

Re: 580 exII flash is weak at 1/1 compared to yongnuo 560 IV

Thanks for your reply, Diverdank!

Unfortunately it isn't speculations, I have tested the output of just the canon 580 from 1/8th power up to 1/1 power and have found the EXACT same exposure rating on the histogram of the photo. I am returning it to Adorama on grounds of the product being faulty.

Thanks everyone for your ideas!
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Reputable Contributor
Posts: 718
Registered: ‎02-06-2013

Re: 580 exII flash is weak at 1/1 compared to yongnuo 560 IV


Nates96 wrote:
Thanks for your reply, Diverdank!

Unfortunately it isn't speculations, I have tested the output of just the canon 580 from 1/8th power up to 1/1 power and have found the EXACT same exposure rating on the histogram of the photo. I am returning it to Adorama on grounds of the product being faulty.

Thanks everyone for your ideas!

That's OK, Nates69...I was just wondering but I figured from your picture that it was most likely something wrong.  With a flash meter, I can ascertain my wondering, that's all. Good luck.

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