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Thread: Home studio setup

  1. #541

    Default Re: Home studio setup

    Quote Originally Posted by jeanie View Post
    who carried them in singapore?
    fluoro lights means they will have a green cast unless i set my WB to fluoro?well i shoot raw anyway.
    seems like these lights are more for videography.no?
    dealers

    they are equally useful for photography... their tubes last longer than tungsten bulbs, and of course it is not as hot... good for rapid fire photography, or for high speed photography... also useful for modeling lighting effects for clients (the modelling effect will be more obvious than modeling lamps on flash units)... also, due to the size of the tubes, for the same power, its easier to provide a softer light than flash... of course, the revers is true in that it is not able to give powerful point lighting...

    these tubes are photo grade flourescent so won't have the green cast... they are quite ex though... you can of course build your own system with off the shelf parts... ymmv...

    Quote Originally Posted by jeanie View Post
    which brings me to the question.
    if tungsten lights are so hot,
    why use them?who use them?for what purpose?
    tungsten gives a warm glow... but that was more useful in film days than in digital shooting with adjutable white balance... tungsten lighting is also relatively cheaper... although of course, their bulbs don't last as long due to their being always on when in use, as opposed to that of a flash tube... also, don't have to worry about syncing with camera, so a much simpler system to operate, especially in the days before wireless syncing...

  2. #542

    Default Re: Home studio setup

    thanks RBK

    the ringflash sure looks good!

  3. #543

    Default Re: Home studio setup

    masters of light, hear me now.

    assuming i use f8 to shoot dance jumps.
    will shutter speed of 1/250 make a difference over 1/125?
    i'm using bowens esprits 500.
    my aim is to freeze the jump as sharp as i could

  4. #544
    vince123123
    Guests

    Default Re: Home studio setup

    If your ambient light is negligible, then your shutter speed is not a factor in freezing the motion. Your ability to freeze is determined by your flash duration.

    Quote Originally Posted by jeanie View Post
    masters of light, hear me now.

    assuming i use f8 to shoot dance jumps.
    will shutter speed of 1/250 make a difference over 1/125?
    i'm using bowens esprits 500.
    my aim is to freeze the jump as sharp as i could

  5. #545

    Default Re: Home studio setup

    Quote Originally Posted by vince123123 View Post
    If your ambient light is negligible, then your shutter speed is not a factor in freezing the motion. Your ability to freeze is determined by your flash duration.
    but my ambient light is almost zero.
    so does that mean i really need to get lights that has a extremely fast speed?

  6. #546
    Moderator catchlights's Avatar
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    Default Re: Home studio setup

    maybe you would like to do a search or post your question here instead?
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  7. #547
    vince123123
    Guests

    Default Re: Home studio setup

    Yeap, that sounds like it. And flashes with very short durations are expensive - it means the flash unit needs to output a very high intense burst of light in order to achieve the light quantum required.

    E.g.

    X units x Y Duration = Z quantum of light needed for proper exposure.

    The shorter Y is, the larger X is, meaning a damn powerful flash tube.

    Either that, or as some have suggested, up your ISO so that Z is reduced, and hopefully by reducing the power knob, Y gets reduced as well.

    Quote Originally Posted by jeanie View Post
    but my ambient light is almost zero.
    so does that mean i really need to get lights that has a extremely fast speed?

  8. #548

    Default Re: Home studio setup

    Quote Originally Posted by catchlights View Post
    maybe you would like to do a search or post your question here instead?
    i'm always shy in posting such newbies queries.even in CS here, sometimes i find my ques rather 'stupid'.

  9. #549

    Default Re: Home studio setup

    Quote Originally Posted by vince123123 View Post
    Yeap, that sounds like it. And flashes with very short durations are expensive - it means the flash unit needs to output a very high intense burst of light in order to achieve the light quantum required.

    E.g.

    X units x Y Duration = Z quantum of light needed for proper exposure.

    The shorter Y is, the larger X is, meaning a damn powerful flash tube.

    Either that, or as some have suggested, up your ISO so that Z is reduced, and hopefully by reducing the power knob, Y gets reduced as well.
    thanks.i'll try the iso thingy.
    but generally i dont like to use anything more than iso100.
    "graininess"?

  10. #550
    vince123123
    Guests

    Default Re: Home studio setup

    Well, if you wanna take those sort of heart stopping freezing shots, something has to give, either your pocket, or graininess.

    People spend a lot of money on setups to freeze shooting bullets so it isn't a cheap thing you're going into.

    Quote Originally Posted by jeanie View Post
    thanks.i'll try the iso thingy.
    but generally i dont like to use anything more than iso100.
    "graininess"?

  11. #551

    Default Re: Home studio setup

    Quote Originally Posted by vince123123 View Post
    Well, if you wanna take those sort of heart stopping freezing shots, something has to give, either your pocket, or graininess.

    People spend a lot of money on setups to freeze shooting bullets so it isn't a cheap thing you're going into.
    ok.got it.i'll try iso for a start.if it still doesnt work, i'll give freezing a miss.

    someone helpful emailed those pro's overseas for me regarding the dance shoot.
    you are right, they really use those high end fast strobes.

  12. #552
    vince123123
    Guests

    Default Re: Home studio setup

    A cheap way is to just ask your dancer to hold the accent moves, which is what you want to shoot anyway. You don't actually have to shoot her when she is dancing.

    Quote Originally Posted by jeanie View Post
    ok.got it.i'll try iso for a start.if it still doesnt work, i'll give freezing a miss.

    someone helpful emailed those pro's overseas for me regarding the dance shoot.
    you are right, they really use those high end fast strobes.

  13. #553

    Default Re: Home studio setup

    Quote Originally Posted by vince123123 View Post
    A cheap way is to just ask your dancer to hold the accent moves, which is what you want to shoot anyway. You don't actually have to shoot her when she is dancing.
    how to hold the move in midair? i'm referring to dance jumps.those really difficult moves.

  14. #554

    Default Re: Home studio setup

    guys, i found this.
    can help me out?what does t=0.5 means and 1/925, what has this got to do with what my d200 can set to?

    Stored Energy 500Ws
    Guide number (m/100 ISO) 79.8
    Recycle time to full power (240v) 1.54secs.
    Flash Duration to t=0.5 1/925 sec.
    Flash Power Variation Full to 1/32
    Stepless Power Variation Yes
    User Replaceable Flash Tube BW2032 (UV)
    BW2030 (Clear)
    Recommended Modelling Lamp 275w Photoflood
    250w Halostar
    Model Lamp Variability Full to 1/32
    Colour Temperature (+/- 300K) 5600K
    Voltage Stabilisation to 1%
    Flash Inhibit Circuit Yes
    Ready Light Indication at 100% charge
    Audible Recharge Confirmation Yes
    IR Remote Control No
    Reflector Mount S-Type Bayonet
    Operating Voltage 190-250V 50Hz
    Sync Voltage 5V DC
    Built in Slave Cell Yes
    Switchable Slave Cell Yes
    Circuit Protection Yes 5A(F) fuse
    EM Noise Suppression Yes
    Width 145mm
    Length 365mm
    Height 130mm
    Weight 3.4kg

  15. #555
    vince123123
    Guests

    Default Re: Home studio setup

    I have no idea, maybe T is the max power? So its saying half of max power is 1/925 sec burst?

    But what I do know is that it has nothing to do with what your D200 can set to. Shutter speed and flash burst duration are independent factors.

    Quote Originally Posted by jeanie View Post
    guys, i found this.
    can help me out?what does t=0.5 means and 1/925, what has this got to do with what my d200 can set to?

    Stored Energy 500Ws
    Guide number (m/100 ISO) 79.8
    Recycle time to full power (240v) 1.54secs.
    Flash Duration to t=0.5 1/925 sec.
    Flash Power Variation Full to 1/32
    Stepless Power Variation Yes
    User Replaceable Flash Tube BW2032 (UV)
    BW2030 (Clear)
    Recommended Modelling Lamp 275w Photoflood
    250w Halostar
    Model Lamp Variability Full to 1/32
    Colour Temperature (+/- 300K) 5600K
    Voltage Stabilisation to 1%
    Flash Inhibit Circuit Yes
    Ready Light Indication at 100% charge
    Audible Recharge Confirmation Yes
    IR Remote Control No
    Reflector Mount S-Type Bayonet
    Operating Voltage 190-250V 50Hz
    Sync Voltage 5V DC
    Built in Slave Cell Yes
    Switchable Slave Cell Yes
    Circuit Protection Yes 5A(F) fuse
    EM Noise Suppression Yes
    Width 145mm
    Length 365mm
    Height 130mm
    Weight 3.4kg

  16. #556

    Default Re: Home studio setup

    question:

    if i set my cam to 1/250 and f8,
    assuming i put the lights close to subject and power down as cathclights mentioned.

    i then put 2 big bookends (for fill)to isolate dancer from backdrop, will the shutter open long enough(cos i want to freeze subject, hence chose fastest shutter speed) for the light from the strobe to hit the bookend and fill in the dancer's posterior?

    i could add 2 more light from the sides firing to the dancer's rear to isolate her but i'm afraid of lens flare

    please advise.

  17. #557
    Senior Member
    Join Date
    Dec 2003
    Location
    Gim Boon Tai
    Posts
    2,909

    Default Re: Home studio setup

    Shutter definitely opens long enough, but your flash duration might still not be fast enough to freeze everything. I reckon the max your strobes go is 1/1000s. You don't have to shoot at F8, can try lower setttings and see if you can shoot at min power.
    If you understand my works, it's photography. If you don't, it's art.
    SplutterPhotography|flickr

  18. #558
    Moderator catchlights's Avatar
    Join Date
    Sep 2004
    Location
    Punggol, Singapore
    Posts
    21,902

    Default Re: Home studio setup

    Quote Originally Posted by jeanie View Post
    question:

    if i set my cam to 1/250 and f8,
    assuming i put the lights close to subject and power down as cathclights mentioned.

    i then put 2 big bookends (for fill)to isolate dancer from backdrop, will the shutter open long enough(cos i want to freeze subject, hence chose fastest shutter speed) for the light from the strobe to hit the bookend and fill in the dancer's posterior?

    i could add 2 more light from the sides firing to the dancer's rear to isolate her but i'm afraid of lens flare

    please advise.
    I have say I'm not sure will it work.
    base on the article, plus the spec from bowens.
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  19. #559

    Default Re: Home studio setup

    Quote Originally Posted by Splutter View Post
    Shutter definitely opens long enough, but your flash duration might still not be fast enough to freeze everything. I reckon the max your strobes go is 1/1000s. You don't have to shoot at F8, can try lower setttings and see if you can shoot at min power.
    thanks for the fast reply.

    lower settings as in f5.6 or f4?will the DOF be sufficient?
    i'm thinking of using 70-200 afs vr.
    or what lens you suggest?
    9 feet backdrop.

  20. #560

    Default Re: Home studio setup

    Quote Originally Posted by catchlights View Post
    I have say I'm not sure will it work.
    base on the article, plus the spec from bowens.
    oh shucks....means i really have to get faster strobes ah?

    already spent so much on these strobes.

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