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Old Sep 30, 2011, 5:22 AM   #1
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Default Canon 580EX II Speedlight..

Ok question I just started getting into flash photography as I mainly used my lowel id video light,, but I just bought Bryan Peterson's new flash book and that thing is fantastic, I am already starting to understand flash, but he uses Nikon sb-900 and mainly shoots in manual flash mode and the sb-900 has in manual where you can put the ISO aperture and ratio, and what does canon give us is only a ratio in manual and in the function menu Fn 05 set to 3 it gives us to where we can add ISO and aperture but no ratio control (How Pathetic) is there a flash on the market for canon that has that kind of feature? metz? please don't come in here and tell me to shoot ETTL as it might come in handy sometimes but I am talking about full manual like Cliff Mautner and Bryan Peterson use, thanks
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Old Sep 30, 2011, 2:28 PM   #2
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I've not read the book so not sure what ISO and ratio have to do with shooting manual. I use a 580EXII all the time in manual mode when on location and like my studio lights all I'm concerned with is the power used. What is it you are trying to do that isn't possible?

The last photo of Wedding - Tim and Cassie - Priston Mill near Bath was shot with the 580 fired by a Cactus trigger through a 43" brolly.
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Old Sep 30, 2011, 2:37 PM   #3
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Originally Posted by Mark1616 View Post
I've not read the book so not sure what ISO and ratio have to do with shooting manual. I use a 580EXII all the time in manual mode when on location and like my studio lights all I'm concerned with is the power used. What is it you are trying to do that isn't possible?

The last photo of Wedding - Tim and Cassie - Priston Mill near Bath was shot with the 580 fired by a Cactus trigger through a 43" brolly.
Thanks Mark, hey I truley love my Canon gear but here is what I mean, he states that in manual mode on flash he will set his ISO aperture and when needed he would dial down the ratio for a closer flash to subject distance, well say his camera is at f/11 and then he would use a diffuser and a filter gel, he then loses about 2 stops of light and he would dial the flash aperture to f/5.6 and keep his camera set to f/11 to give him his 2 stops back, this is what I mean how do you do that with the 580EX II? btw nice pictures there Mark, thanks
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Old Sep 30, 2011, 2:56 PM   #4
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Ah, OK I think I see. All I would do is adjust power manually. So if I go from naked flash to brolly then dial in the extra power. If I'm on 1/8 and I will lose 2 stops I go to 1/2 power.

All the extra options he has are sort of giving the flash some idea of the lighting (I guess) but still nothing you can't do with the Canon. To get the initial exposure either go for a light meter or just use the screen to review then adjust.
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