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Sunpack DS20 or Digital Flash with G3
- Thread starter DSant
- Start date
I would like to know wich one of the Sunpack's (DS-20 or Digital
Flash) is the best combination with G3.
Does anybody know the GN for the Digital Flash? I can't find it.
tnx
DSant
They don't publish the GN for the Sunpak Digital Flash, but I would guess it at around 50.I would like to know wich one of the Sunpack's (DS-20 or Digital
Flash) is the best combination with G3.
Does anybody know the GN for the Digital Flash? I can't find it.
tnx
DSant
The G3 can't turn pre-flash off, so you need a slave flash that can ignore pre-flash which the DS20 cannot. So you need the Digital Flash Outfit.
However, you could use the DS20 as I do, with a Wein Smart Slave Trigger. HTH. PatiO.
you might also want to check out the Vivitar http://vivitar.com/Products/Flashes/flash.html#DF200
I am not sure if it's available yet though.
Thang.
I am not sure if it's available yet though.
Thang.
I would like to know wich one of the Sunpack's (DS-20 or Digital
Flash) is the best combination with G3.
Does anybody know the GN for the Digital Flash? I can't find it.
tnx
DSant
Y
Member
Pardon my ignorance but what is GN?
Thanks.
Thanks.
They don't publish the GN for the Sunpak Digital Flash, but I wouldI would like to know wich one of the Sunpack's (DS-20 or Digital
Flash) is the best combination with G3.
Does anybody know the GN for the Digital Flash? I can't find it.
tnx
DSant
guess it at around 50.
The G3 can't turn pre-flash off, so you need a slave flash that can
ignore pre-flash which the DS20 cannot. So you need the Digital
Flash Outfit.
However, you could use the DS20 as I do, with a Wein Smart Slave
Trigger. HTH. PatiO.
Dzidek
Member
GN = Guide Number. The higher the GN the more powerfull flash is.
The number expresses the range of a flash in meters when sensitivity is set to ISO100.
The number expresses the range of a flash in meters when sensitivity is set to ISO100.
Pardon my ignorance but what is GN?
EJE
Leading Member
The GN number is either expressed for range in feet or meters. The range of the flash is then calculated by dividing the GN number by the f-stop used. For example of the GN in feet is 50, then the range of the flash is 25 feet if the f-stop is f2, and 12.5 feet is the f-stop is f4. If the GN is expressed for meters, then divide the GN by the f-stop and you'll get the range in meters.
Pardon my ignorance but what is GN?
The higher the guide number (GN) the more powerful the flash, just as Dzidek and EJE said.Pardon my ignorance but what is GN?
I use a rule of thumb that flashes with a GN under 15' (feet) are usually on a P&S camera and are too weak.
GNs of
GNs of
GN's over
Anyone care to add to or correct this info. I am only going by memory and may need some better rules. :^) PatiO.
Y
Member
Hi EJE,
Is your calculations based on sensitivity of ISO100 and how do I know whether the GN is in feet or meter when only GN: 59 is indicated on the spec of my DS20?
Thanks for your help.
Is your calculations based on sensitivity of ISO100 and how do I know whether the GN is in feet or meter when only GN: 59 is indicated on the spec of my DS20?
Thanks for your help.
Pardon my ignorance but what is GN?
If the GN is 59, I think you can assume it is expressed in feet. If in meters the number would be much smaller. HTH. PatiOHi EJE,
Is your calculations based on sensitivity of ISO100 and how do I
know whether the GN is in feet or meter when only GN: 59 is
indicated on the spec of my DS20?
Thanks for your help.
Pardon my ignorance but what is GN?
James Finch
Member
Metz 34 CS-2 digital has some good reviews. One of the members of this forum used it and was very impressed by results. He also posted some comparison shots using S30 with and without slave flash.
You might try search under: "Canon S30 and slave flash"
Thanks.
You might try search under: "Canon S30 and slave flash"
Thanks.
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