apparently the link is now broken. so its fake i presume.

edit: its working again.

i also ever read rumor of F72, F98... design took over from metz's hammerhead... LOL. but where is it? rumor is jsut a rumor. anyhow, let forget bout this, and move on to next topic.
anyhow. seriously, why canon would need a bigger GN? they can do clean iso3200, or some body even more, 6400, which puts the 580ex able to shoot up to 116meter! +F2.8 lens, it could goes up to 200meter... do we/they/whoever really need that kind of range?

interested on my used unit sal16105 + pro1?
bought during feb 2010

zstan: PLSSSSS stop spreading untrue information. they wont be F68. and what canon ones? canon top the 580exII has the same FLASH head internal as F58(both manufacture/design? by panasonic), hence the GN is 58 too (hence the 580EX). there arent news about canon with new flash.

the key diff among these 2, Sony has WL built in, while the 580EX dont.
mastering: nikon CLS is better in term of 'control' in Commander mode. the commander mode (cls) is built into the body, but not all body has it. u can directly adjust the group flash power from the body, (sony controls using F58, which only available when mount on A850 and A900).

the biggest weakness is, it has weak trigger, sometimes the nikon flash did not fired. miss fire etc. (there are several other minor problems which is not a big concern)

but if u uses 'pocket wizards' or china trigger module, the CLS will NOT work. but u get 100% fires.

bigger guide number=smaller iso to be used=more cleaner images?

of course we need that kind of range...very useful during pc fairs and super gt.    

boss~ eerrr~ a bit of correction~ current a700 can use the f58 as commander too~ but only can trigger f58 and f42 in wireless mode~ a850 n a900 can trigger f36, f42, f56 and f58~ 

sony need to compete with SB-900, free stofen!

still none can beat quick-shift bounce.. While everyone's still with the old flash head design

bigger guide number=smaller iso to be used=more cleaner images?

of course we need that kind of range...very useful during pc fairs and super gt.    

please check the SB900 pricing & compare to F58,you can but LOTSSSSSSS of stofen with the price difference
I love the design too,my friends    when see me shift the cobra head like that 
I prefer to go close to the models during pcfair    unless the super gt held during night 

okay, here we go
Bigger GN, bigger charge release, shorter batt stamina, longer cycle time. and prone to overheat. just because u wan use low iso.

small iso = black background, no diff from direct flash effect. (go try it)

a wedding/event shooter will tell u, they wan bigger better iso, just so that the flash has to work less.

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Added on June 30, 2010, 6:18 pm
Wrong hahaha,

u able to "trigger"(keyword) other flash with F58. u do not 'command'(keyword) on A700. commander means, u able to control(keyword) other flash power.

so the word should be, trigger-able on A700

okay, here we go
Bigger GN, bigger charge release, shorter batt stamina, longer cycle time. and prone to overheat. just because u wan use low iso. (also slows down ur burst (of if ur body ignore the flash and cont burst, u get black/underexpose frames)

small iso = black background, no diff from direct flash effect. (go try it)

a wedding/event shooter will tell u, they wan bigger better iso, just so that the flash has to work less.

i have lego troopers..but hvn take any picture yet..lol...if im going to take..it'd be sp90 or 135mm....2470 is too wide for such a tiny fella...

gouki. it cant control the ratio. it only able to trigger.

lol. i know nuts bout the GN. mostly use bounce, most of the time just set the range on auto. only control the power. if not ok, then increase power. if still not ok, then increase ISO. but it's not i'm using an aeroplane or a spaceship to bounce off the flash, so even F42 works for a damn high ceiling like in a hall.

but hey, i'm a bounce person. hardly use direct flash coz dunno when and how to use it because i hate those harsh shadow. so like i said, i know nuts bout GN and how far it can go. haha.

p/s: but i usually increase the ISO a bit so that i can reduce flash power hence save the battery.