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04/09/2007 08:36:41 AM · #1 |
Hi everyone and happy easter!
I'm after some help with correction filters. I've read in an old book about using an 85B correction filter (orange) to correct for bright blue sky conditions, but, as this book is old and based around film cameras I was just wondering if the same filter can be applied to DSLR's with the same effect? Or if there are specially designed filters for use with digital?
Grateful as always for any help.....
Chris |
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04/09/2007 08:55:38 AM · #2 |
There are different color filters used to counter this and counter that. They also help change the mood of the photo. Now i guess some people would have to say its best todo it optically, but in photoshop you can apply photofilters under adjustments.
The first photofilter you will come upon is the one your talking about. Im sure there are screw on filters that work with digital SLR's, hopefully someone else can post on that.
Message edited by author 2007-04-09 08:56:15. |
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04/09/2007 08:58:49 AM · #3 |
| The filter will just fine with digital, though I wouldn't bother. A colour shift like that would be easy enough to achieve by changing the white balance of the image, or to do a Hue/Saturation adjustment. |
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04/09/2007 11:46:44 AM · #4 |
Back in the old days (film era) the film emulsions had one of two color balances; Daylight or Tungsten. These corresponded to the light source i.e. Tungsten for shooting indoors with hotlights and Daylight for sunlight and strobe. Since, when shooting film, it's difficult to switch film mid-roll, there are 2 series of color correction filters designed to allow correct color when shooting Tungsten film outdoors or Daylight film indoors. The Orange filters are for shooting Tungsten balanced film outdoors, the Blue filters are for shooting daylight film indoors. With digital, the ability to shift WB on the fly has rendered these filters obsolete for digital cameras.
However, when purchased as a lighting gel, they (and other CC filters) can be immensely useful when shooting in mixed lighting as they will allow all light sources to be corrected to the same color temperature. |
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04/09/2007 07:20:01 PM · #5 |
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04/09/2007 07:21:46 PM · #6 |
Originally posted by dewdodesign:
what is a lighting gel? |
not 100% but you can use colored gels on your flash to create anything from slightly colored lighting to even causing a color to reflect off of objects when the flash goes off in low power. |
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04/09/2007 07:45:36 PM · #7 |
Just don't use auto white balance or the camera will try and compensate for the the colour cast. Also, coloured filters are generally used in black and white photography to affect the contrast.
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04/09/2007 08:07:37 PM · #8 |
If you are using correction filters ,eg polarisers they will not work with digitsl if the white balance is on AWB.
you have to set for sunny day or another manual setting for them to work correctly with digital
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04/09/2007 08:09:57 PM · #9 |
Originally posted by RainMotorsports:
Originally posted by dewdodesign:
what is a lighting gel? |
not 100% but you can use colored gels on your flash to create anything from slightly colored lighting to even causing a color to reflect off of objects when the flash goes off in low power. |
Exactly.
You can also use them, as I mentioned, to color balance two different light sources. |
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04/09/2007 08:19:49 PM · #10 |
Originally posted by RainMotorsports:
Originally posted by dewdodesign:
what is a lighting gel? |
not 100% but you can use colored gels on your flash to create anything from slightly colored lighting to even causing a color to reflect off of objects when the flash goes off in low power. |
You can use gels on other types of lights also, but you should be aware of how much heat the light puts out-you _may_ get away with using pretty much anything for a flash, but tungsten lights can melt some colored plastic. One gel manufacturer is Rosco, they have some good info on their site. |
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