Question on Flash


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MsBunny

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Oct 16, 2006
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#1
Need some enlightenment for a total photography noob here on the use of flash.

I was trying out the 430EX flash few days back to do some casual shoots at a personal indoor event. I realised that when I try to take pix continously, one after another, in short time intervals (need not be immediately), some of my shots will turn out to be underexposed (dark).
Why? :dunno:
Is it that the flash cannot charge up in time?
Is there any settings that I'll need to set on the flash/camera to avoid this again?
Does the type of batteries I use have any effect too?

can the CS gurus advice? :sweatsm:

Thanks! :)
 

Robertbe

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Jul 13, 2006
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Clementi
#2
Hi, i am not a gurus or what ever just sharing this things only,
1) Yes you are right on what you saying , the flash is not able to charge up in time for your next shoot ( Not fully charge yet )

2) Try using TTL or RPT shoot if you are trying to shoot some continous shots.

3) Yes the type of batteries do effect your flash too. so far i am using Panasonic Alkaline which i think is good too.

If you are not using Flash ( day time ) then you can have good exposed pictures. if its at night and you need cont. photo with flash then its a bit hard to get good exposed photos

Happy shooting
 

MsBunny

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Oct 16, 2006
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#3
Thanks Robert! ;)

Does that mean that the batteries will affect how fast the flash charge up too? So what's the best batteries to use for flash then? I was using powerex 2700 rechargables. :sweatsm:
 

#4
i have the same flash and can shoot consecutively without it underexposing so i don't think its the flash itself as the cycle time is fast enough.

i'm using Varta rechargeable NiMH batteries (2000mAh). it could be due to the flash not reaching the subject properly - maybe cos the TTL hasn't recognised the distance of the subject and hasn't adjusted the flash accordingly? (i'm not 100% sure on how it works)
 

MsBunny

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Oct 16, 2006
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#5
sorry the questions may sound very silly ... but I'm a total newbie in photography, especially flash. :embrass:
 

catchlights

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Sep 27, 2004
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www.foto-u.com
#6
I realised that when I try to take pix continously, one after another, in short time intervals (need not be immediately), some of my shots will turn out to be underexposed (dark).
Why? The flash has not recharge due to rapid fire.

Is it that the flash cannot charge up in time? Yes.

Is there any settings that I'll need to set on the flash/camera to avoid this again?
#1, slow down your shoot
#2, use bigger f stop
#3, use higher ISO
#4, go closer to your subjects
#5, change new batteries for your flash
#6, use battery pack for your flash


Does the type of batteries I use have any effect too?
Yes, basically higher mAh batteries can recharge faster and have higher capacity.

Your powerex 2700 batteries is good enough. just make sure they are fully charge before use.

 

MsBunny

New Member
Oct 16, 2006
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#7
thanks Robert, Dan, and Catchlights for your enlightenment! :)

Glad to have joined this forum! :thumbsup: Really alot to learn from the gurus in CS for a noob like me.
 

MsBunny

New Member
Oct 16, 2006
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#11
I guess having Quantum battery pack is still the best?

It must be quite expensive. :sweat:
 

Artosoft

Senior Member
Aug 31, 2005
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Tanjong Katong
#12
Does the type of batteries I use have any effect too?
Yes. Read the manual.

Battery type will determine recycle time of flash. Ni-MH will have faster recycle than Alkaline. Using 5th battery or SD-8A high voltage battery pack (as in Nikon SB-800) will help you get faster recycle time.

Capacity of battery will determine how much flashes from full/new battery. Say 2000mAH can give 100 flashes, 2700mAH cam give 150 flashes.

Regards,
Arto.
 

May 26, 2006
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#15
I guess having Quantum battery pack is still the best?

It must be quite expensive. :sweat:
not quite they r sold $20 per pack i guess i got mine for $15 recently due to the charger i bought
 

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