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Thread: Flash too powderful

  1. #61
    Senior Member denniskee's Avatar
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    Default Re: Flash too powderful

    Quote Originally Posted by yanyewkay View Post
    whatever happened to the good ol' calculation by the GN?
    nowadays autoeverythinggoes, where got need to do manual calculation one.
    photography makes one sees things from all angles.

  2. #62
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    Default Re: Flash too powderful

    Quote Originally Posted by denniskee View Post
    nowadays autoeverythinggoes, where got need to do manual calculation one.
    got! when you set to manual!
    “How fortunate for leaders that men do not think.” - Adolf Hitler

  3. #63

    Default Re: Flash too powderful

    Quote Originally Posted by yanyewkay View Post
    got! when you set to manual!
    Then just need to know how to press a different button - on a light meter can liao!

    AUTO Calculate everything all over again! No need to use blains!

  4. #64
    Senior Member denniskee's Avatar
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    Default Re: Flash too powderful

    Quote Originally Posted by Dream Merchant View Post
    Then just need to know how to press a different button - on a light meter can liao!

    AUTO Calculate everything all over again! No need to use blains!
    brains is going cheap nowadays, with autoeverything gudget.
    photography makes one sees things from all angles.

  5. #65

    Default Re: Flash too powderful

    simple solution to this problem is...buy/get another smaller power flash.

  6. #66

    Default Re: Flash too powderful

    I think Kniveswood had a good idea, can you bounce it off the ceiling or a wall to deflect it's harshness instead of having to place your flash just right? I suppose if you have the time though, you can move it back a bit and possibly angle it for the shot but than you may be looking at an unwanted shadowing affect on your subject.
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  7. #67
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    Default Re: Flash too powderful

    Quote Originally Posted by Wolfsfire View Post
    I think Kniveswood had a good idea, can you bounce it off the ceiling or a wall to deflect it's harshness instead of having to place your flash just right? I suppose if you have the time though, you can move it back a bit and possibly angle it for the shot but than you may be looking at an unwanted shadowing affect on your subject.
    this is a work around. suppose that the desired effect is for the light to come in straight from the side and not fall from the top or it is outdoors without any ceiling. Then the suggestion will not work.

    Also, TS problem is with flash being "too powerful" (I always wished that I had a more powerful flash)that over exposed his shots and not about light being too hard.

    GN given on flash lights have a purpose. Do read up on it. It'll serve everyone to understand your equipment better and not need to change your art direction due to the lack of proficiency on your equipment.
    “How fortunate for leaders that men do not think.” - Adolf Hitler

  8. #68

    Default Re: Flash too powderful

    Quote Originally Posted by WhipLash View Post
    Hi guys,

    Sorry if this sound stupid, but I'm new to using off-camera flash.

    I have a 430ExII with an ebay trigger on manual mode, dialed to the lowest setting it can go (1/64).

    I'm using a 17-55 at 55mm for a tight headshot. The flash is 3 ft away from the subject, with an omnibounce. Nearer = softer, right?

    Problem is, the flash is too powerful, resulting in the subject being overexposed. Since the power is already at the minimum, what can I do to lower the flash output? In ETTL mode it's really easy using flash compensation.

    Thanks, and cheers!
    Quote Originally Posted by yanyewkay View Post
    this is a work around. suppose that the desired effect is for the light to come in straight from the side and not fall from the top or it is outdoors without any ceiling. Then the suggestion will not work.

    Also, TS problem is with flash being "too powerful" (I always wished that I had a more powerful flash)that over exposed his shots and not about light being too hard.

    GN given on flash lights have a purpose. Do read up on it. It'll serve everyone to understand your equipment better and not need to change your art direction due to the lack of proficiency on your equipment.
    TS problem is with the light being too harsh

  9. #69

    Default Re: Flash too powderful

    Quote Originally Posted by WhipLash View Post
    Hi guys,

    Sorry if this sound stupid, but I'm new to using off-camera flash.

    I have a 430ExII with an ebay trigger on manual mode, dialed to the lowest setting it can go (1/64).

    I'm using a 17-55 at 55mm for a tight headshot. The flash is 3 ft away from the subject, with an omnibounce. Nearer = softer, right?

    Problem is, the flash is too powerful, resulting in the subject being overexposed. Since the power is already at the minimum, what can I do to lower the flash output? In ETTL mode it's really easy using flash compensation.

    Thanks, and cheers!
    I may be wrong though.

  10. #70

    Default Re: Flash too powderful

    Why not DIY a reflector, use a large cardboard and stick aluminium foil on it. Aim the flash at it and use it to bounce the flash.

  11. #71

    Default Re: Flash too powderful

    Hi TS,

    since you are already handholding ur flash, why not get the Canon Off-Camera Shoe Cord OC-E3. With this, u have the flexibility of handheld ur flash while retaining the ETTL function. Of coz ND filter does help, but using it will also cutting down on ur ambient light, which may not be the most desirable solution.

  12. #72

    Default Re: Flash too powderful

    hi guys,

    after reading this thread. i have a key take-away. pls confirm my understrand is correct or not:

    when u find that flash is too harsh, by turning down the shutter speed u cut ambient light, it doesnt affect flash harshness.
    to reduce hashness, either point flash to the sky with omnibounce (lose 2 stopes), or manually adjust down the flash power. if all fail, use a big big diffuser.

    right?
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  13. #73

    Default Re: Flash too powderful

    Quote Originally Posted by WhipLash View Post
    Hi guys,

    Sorry if this sound stupid, but I'm new to using off-camera flash.

    I have a 430ExII with an ebay trigger on manual mode, dialed to the lowest setting it can go (1/64).

    I'm using a 17-55 at 55mm for a tight headshot. The flash is 3 ft away from the subject, with an omnibounce. Nearer = softer, right?

    Problem is, the flash is too powerful, resulting in the subject being overexposed. Since the power is already at the minimum, what can I do to lower the flash output? In ETTL mode it's really easy using flash compensation.

    Thanks, and cheers!
    Actually TS encountered a problem in making the light softer and by moving the flash closer to his subjects, he created a second problem with the minimum flash output being too powerful.

    By using a suitable size diffuser, he would be able to create softer light for his subject and also bring down the power of his flash

  14. #74

    Default Re: Flash too powderful

    you can just use ND gels over the flash if you just wanna reduce its output..

  15. #75
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    Default Re: Flash too powderful

    Quote Originally Posted by w3iw3n View Post
    hi guys,

    after reading this thread. i have a key take-away. pls confirm my understrand is correct or not:

    when u find that flash is too harsh, by turning down the shutter speed u cut ambient light, it doesnt affect flash harshness.
    what do you mean by flash too harsh?
    hard shadow and spectacular highlight on subject cause by the flash?

    changing the output of flash will not change the quality of light, (harsh lighting is still harsh lighting)
    however, by decreasing the ratio between ambient and flash, you may make the harsh light cause by the flash be less prominent.


    Quote Originally Posted by w3iw3n View Post
    to reduce hashness, either point flash to the sky with omnibounce (lose 2 stopes), or manually adjust down the flash power. if all fail, use a big big diffuser.

    right?
    re-read my post #30, or

    softness of lights is related the to size of light source, not the power of light
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  16. #76

    Default Re: Flash too powderful

    Hi guys, glad to see there is a lively discussion going on while I was away...

    Quote Originally Posted by mahojazz View Post
    Hi TS,

    since you are already handholding ur flash, why not get the Canon Off-Camera Shoe Cord OC-E3. With this, u have the flexibility of handheld ur flash while retaining the ETTL function. Of coz ND filter does help, but using it will also cutting down on ur ambient light, which may not be the most desirable solution.
    I was actually deciding between the ST-E2 and ebay triggers. The former would allow ETTL, but after reading the opinion of a few strobists, it seems most use manual and I'm trying to learn to do the same. Besides, the ebay trigger is 1/6 the price of ST-E2. I don't like to be limited by cords. During my trip, I took flash shots where use of a cord was impossible.


    Quote Originally Posted by cutecdo View Post
    Actually TS encountered a problem in making the light softer and by moving the flash closer to his subjects, he created a second problem with the minimum flash output being too powerful.

    By using a suitable size diffuser, he would be able to create softer light for his subject and also bring down the power of his flash
    Yes, this sums up my problem. I know using a diffuser would help lower flash power, but was hoping to learn of other ways to do this.


    Quote Originally Posted by J-Chan View Post
    you can just use ND gels over the flash if you just wanna reduce its output..
    I've never even heard of ND gels! Does CP-P sell them? Any idea on the price? Sounds like a good solution if use of a diffuser is not allowed.
    Canon 450D | Canon 17-55mm f2.8 IS USM | Canon 55-250mm f4-5.6 IS | 430EXII | Gitzo GT0541, 486RC2

  17. #77

    Default Re: Flash too powderful

    Quote Originally Posted by geraldkhoo View Post
    Let me try and give you a simple work flow... but this is not a rule but a guideline. You can adjust any of the settings, but just something to start you off with...

    1. Set ISO to the required level (normally I start at lowest).

    2. Use the camera to meter the scene when you adjust the aperture and shutter speed by looking at the +/- section.

    3. Set aperture to the required amount (aperture controls the amount of light, esp. from the flash).
    - 3.1 If you want to use wide aperture (e.g. f/2.8), you can decrease flash power, decrease ISO, or use ND filter.

    4. Set to a shutter speed that does not pass the max sync speed (normally 1/200s). The shutter speed controls ambient light.
    - 4.1 If you need more ambient light, decrease shutter speed.
    --- 4.1.1 If shutter speed is so slow that cannot be handheld, use a tripod.
    - 4.2 If you need less ambient light, increase shutter speed.
    --- 4.2.1 If the shutter speed is at the max (e.g. 1/200s), you can use ND filter and/or decrease ISO.

    5. Set the flash sync speed to an amount and try it out.
    - 5.1 If you need more light from the flash, increase it or move the light closer (inverse sq law).
    --- 5.1.1 If you are at max power and need more light, you can add another flash, and/or increase ISO and/or decreased aperture f-number (bigger aperture).
    - 5.2 If you need less light from the flash, decrease it or move it further from the subject (inverse sq law).
    --- 5.2.1 If you cannot decrease it anymore, you can use ND filter, and/or decrease ISO, and/or increase aperture f-number (smaller aperture).

    6. If you want softer light, the size of the light source should be bigger in comparison to the subject and also the distance from the subject.

    Hope this helps

    Thanks for the workflow! I do almost the same thing, except that I leave my camera on Av mode and underexpose using exposure compensation. I then adjust aperture/ISO/flash output to get the desired result.
    Canon 450D | Canon 17-55mm f2.8 IS USM | Canon 55-250mm f4-5.6 IS | 430EXII | Gitzo GT0541, 486RC2

  18. #78

    Default Re: Flash too powderful

    yup there are ND gels..

    http://www.leefilters.com/lighting/p...46DD306FEFF67/

    I know CP does have those colour correction types, but not really sure they have these ND kinds though..

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