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Thread: Question on Flash

  1. #1

    Default Question on Flash

    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?
    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?

    Thanks!

  2. #2
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    Default Re: Question on Flash

    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

  3. #3

    Default Re: Question on Flash

    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.

  4. #4
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    Default Re: Question on Flash

    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)
    5D | 24-70L | 28mm f/1.8 | 580EX

  5. #5

    Default Re: Question on Flash

    sorry the questions may sound very silly ... but I'm a total newbie in photography, especially flash.

  6. #6
    Moderator catchlights's Avatar
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    Default Re: Question on Flash

    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.

    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  7. #7

    Default Re: Question on Flash

    thanks Robert, Dan, and Catchlights for your enlightenment!

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

  8. #8

    Default Re: Question on Flash

    Quote Originally Posted by catchlights View Post
    Yes, basically higher mAh batteries can recharge faster and have higher capacity.
    Umm, you meant NiMH, right?

  9. #9
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    Default Re: Question on Flash

    Quote Originally Posted by fireframe View Post
    Umm, you meant NiMH, right?
    no, he's talking about the capacity of the battery, not the battery type.

  10. #10
    Senior Member +evenstar's Avatar
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    Default Re: Question on Flash

    Quote Originally Posted by fireframe View Post
    Umm, you meant NiMH, right?
    you mean there's higher NiMH and lower NiMH?

    i only know there's higher mAh and lower mAh..
    eat. drink. shoot

  11. #11

    Default Re: Question on Flash

    I guess having Quantum battery pack is still the best?

    It must be quite expensive.

  12. #12
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    Default Re: Question on Flash

    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.

  13. #13
    Moderator catchlights's Avatar
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    Default Re: Question on Flash

    Quote Originally Posted by MsBunny View Post
    I guess having Quantum battery pack is still the best?

    It must be quite expensive.
    same price as your flash, top models should be double the price of your flash.
    Shoot to Live, Live to Shoot
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  14. #14

    Default Re: Question on Flash

    Quote Originally Posted by catchlights View Post
    same price as your flash, top models should be double the price of your flash.




  15. #15

    Default Re: Question on Flash

    Quote Originally Posted by MsBunny View Post
    I guess having Quantum battery pack is still the best?

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

  16. #16
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    Default Re: Question on Flash

    But 430EX do not support external battery packs. Only 550EX and 580EX do.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  17. #17
    Moderator catchlights's Avatar
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    Default Re: Question on Flash

    Quote Originally Posted by Snoweagle View Post
    But 430EX do not support external battery packs. Only 550EX and 580EX do.
    Canon 430EX can use Quantum BANTAM, QB1 / 1+ and QB1 compact battery packs.
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  18. #18
    Moderator catchlights's Avatar
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    Default Re: Question on Flash

    Quote Originally Posted by tankenneth View Post
    not quite they r sold $20 per pack i guess i got mine for $15 recently due to the charger i bought
    He is refering to this.
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  19. #19
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    Default Re: Question on Flash

    Quote Originally Posted by catchlights View Post
    Canon 430EX can use Quantum BANTAM, QB1 / 1+ and QB1 compact battery packs.
    Ohhh...means like those AA sized ones in a pack?
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  20. #20
    Moderator catchlights's Avatar
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    Default Re: Question on Flash

    Quote Originally Posted by Snoweagle View Post
    Ohhh...means like those AA sized ones in a pack?
    this is a quantum battery 1+ I used to have, you can use the module (cable) to connect the battery and the flash, just insert into the flash battery compartment and fastener it.

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