Yongnuo YN-560

s2 ignores preflash. ( i tested it with the N - d40 red eye turned on not sure on the ETTL)
s1 normal optical slave flash...


So solara, you tested the yn 560 and concluded that it is more powerful than the ex 580 II? in what zoom is it both set at?

as there was a test before on some other thread the yn is weaker than the 430 exII at 24mm but at 105mm the yn beam is much tighter so it is much powerful...

No, the Yn-560 is less powerful than the 580EXII.

Yes, I'm trying to get the YN-560 to work in S2 for the Canon wireless so that I can use the 7D or 580EX-II in ETTL, and only have to manually set the YN-560. But it does not seem to respond to the Canon wireless except in S1 mode - which means the Canon master flash has to be in full manual control.

Looking through the manual it seems they state the YN's cannot work with red-eye reduction, Nikon's commander mode, and canon's wireless.......emailin​g them to confirm.

So wanted to check and see if anyone has gotten the YN-560 or any other YN to work in S2 mode with Canon wireless optical master.

tnx for that.. now I get what you mean by 1/4(+.7) I was confused at first

^^^
So, what does that =

rhys216 wrote in post #10626419
^^^
So, what does that =

if my understanding is correct means that the 580 ex 2 was at 1/4 + .7 is as powerful at the 560 on full power.

which means the 580 ex 2 is much powerful than the 560...

$80 bucks isn't bad - if its reliable.

aerosmith9110 wrote in post #10626796
if my understanding is correct means that the 580 ex 2 was at 1/4 + .7 is as powerful at the 560 on full power.

which means the 580 ex 2 is much powerful than the 560...

Ah, thanks, so from what you translated the 560 has half the power of the 580?

rhys216 wrote in post #10628372
Ah, thanks, so from what you translated the 560 has half the power of the 580?

would it be closer to 1/3 power? If it was flashing at 1/2 the power it would take two 560s to equal, and if it were 1/4 power it would take 4 560s to equal, so 1/4 +0.7 would be slightly more powerful than 1/3 the full 580exII power, correct?

^^^^ no i think at quarter power the Canon flash had the YN-560 maxed out... so that would mean the Canon 580 EX II is then effectively 3 times as much powerful.


^^^^ Im just guessing.... someone will have to confirm if this is correct or completely wrong, lol.


EDIT: ooopss... me and "professoryeti" posted at the same time.... i guess he's right so that makes the 580 EX II 4 times as much powerful than the YN-560.

According to this review it matches the YN-460ii and almost matches the SB900 and is pretty close to the 580exii.

So according to this review it's pretty darn impressive in terms of power.

rhys216 wrote in post #10630460
According to this review it matches the YN-460ii and almost matches the SB900 and is pretty close to the 580exii.

So according to this review it's pretty darn impressive in terms of power.

http://speedlights.net …cations-and-test-results/

that is the problem... different reviewers different results... different units different results But I'm not inclined to believe that the 580 ex 2 is 4x powerful than the 560 that would be too much. unless the beam of the 580 is very concentrated...

I bought 2 of these will be soon mounting it on a monopod coupled with 1 - 2 yn 460 to overpower sun..

I'm just waiting for someone to open their 560 and do some tweaking to the output if there is a trimmer that do that inside... if it doubles the power the the 560 is well worth it... as the recycle is only 2 - 2.5 sec with hv its 1 - 1.5 preety fast.. I have a notion that they are short changing the capacitor for faster recycle...

you know china they tend to bend results.. like the flash is capable of this max output adjusting to max power with no regards to recycle time and the faster recycle time they adjust it to fastest recycle with no regards to output... ( no basis whatsoever )

So no one's tried the YN-560 in S2 mode with a Canon wireless yet??

Okay, nevermind I figured out how to have the YN-560 fire correctly in S2 mode with the 7D or 580EX-II.

The YN-560 won't work if the 7d or 580EX-II has the wireless function enabled. Set either to ETTL mode with wireless off, and the YN-560 will fire after the pre-flash.

aerosmith9110 wrote in post #10626796
if my understanding is correct means that the 580 ex 2 was at 1/4 + .7 is as powerful at the 560 on full power.

which means the 580 ex 2 is much powerful than the 560...

The 580EX-II has power settings 1/128 through 1/1 for a total of 21 total steps of selectable light output. (1/128)....+0.3....+0.​7...(1/64)...+0.3....+​0.7...(1/32)...etc all the way to full power at 1/1.

When I said the YN-560 at maxium power output gave the rough equivalent of the 580EX-II at 1/4 (+0.7), that means the 580EX-II was at power level 17 of 21. I have no idea what that is in terms of total power output...whether each step is in absolute numbers or whatever. If we take each step to be equal in power level change, then 17/21 = ~81% of full power.

As a side note, after a little testing, it seems that if I have the 580EX-II on camera in ETTL, and have the YN-560 in S2, that the YN-560's light output screws up the 7D's ETTL so that the exposure is off (unless I'm doing something wrong....again....whic​h is highly likely as I'm quite a newb to flash photography). Not sure why, but the picture is very much under-exposed in this scenario. I can only guess that the brief bright flash from the YN-560 during exposure time fools the camera's sensor so that it prematurely shuts off the 580EX-II's flash. I'm doing this test by taking a picture of an object, but with the YN-560 in the frame as well - will do more testing tomorrow and have the YN-560 out of the actual frame which should lesson the light from the YN-560 reaching the camera's exposure sensor.

So my original idea of using my 7D with the 580EXII in ETTL, and having it trigger the YN-560 in S2 mode to help fill in shadows not covered by the 580EXII is almost useless.

Guess I'll have to learn to do full manual flash photography unless someone can point out what I'm doing wrong in the first place.