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IR/UV Photography Seeing the world in a different light.


 
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Old 19th June 2009   #1
cabbages
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Default My IR pics are always red

Hi all

I'm very new to IR photography

I've stuck a hoya R72 lens infront of my a700 and no matter what I do the pictures I take always turns out red, I've tried playing with the CWB on the camera and pointed it and everything I can think of, but hte pictures always turns out red.

I want to be able to do something like this, but becuase my picture always comes out red, I can't seem to be able to tweet it in GIMP to be like it.

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Old 19th June 2009   #2
catchlights
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Default Re: My IR pics are always red

Tell us how you set your camera custom WB for IR in the first place.
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Old 19th June 2009   #3
cabbages
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Default Re: My IR pics are always red

I point my camera at the grass with out the IR lens on to get focus.

Then I put then lens on and and go into custom, set and then it takes a 30 sec picture.

I then use that setting to take a picture of the sky.
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Old 19th June 2009   #4
catchlights
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Default Re: My IR pics are always red

Originally Posted by cabbages View Post
I point my camera at the grass with out the IR lens on to get focus.

Then I put then lens on and and go into custom, set and then it takes a 30 sec picture.

I then use that setting to take a picture of the sky.
don't have to in focus,

just aim at a patch of foliage under the same lighting, fill the whole frame (for Sony, just the center will do), take a custom balance with filter on.

anyway, I just Google how to set custom WB on A700, so after you take the patch of foliage, follow the instruction and select the photo you took as referance.

hope this help.
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Old 19th June 2009   #5
night86mare
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Default Re: My IR pics are always red

you can always shoot in RAW

and select tree/foliage as white point, also works
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Old 19th June 2009   #6
Blueangle
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Default Re: My IR pics are always red

A newbie myself using Gimp. Try go to colours and look for auto white balance. Click on it. than below it under components play with channel mixer. I hope this works.
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Old 19th June 2009   #7
GeckoZ
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Default Re: My IR pics are always red

can show some sample of the photos u taken?
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Old 20th June 2009   #8
weekh
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Default Re: My IR pics are always red

I have Lightroom.
Is there the Channel Mixer is these 2 software? Or is it only available in PHotoshop?
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Old 20th June 2009   #9
cabbages
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Default Re: My IR pics are always red

Yup Figured it out, it wasn't saving the settings.

It's saving it now and I'm getting some really good shots, almost like the ones above, but for some reason all the trees are green? and not white? but the shkys and buildings are coming out like the pictures above.

Do I need to add a UV filter or something? or am I get the CWB wrong and I should point it at something else?

P.s. get GIMP, it's awesome and free!
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Old 21st June 2009   #10
weekh
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Default Re: My IR pics are always red

How to do this in GIMP?
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Old 15th July 2009   #11
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Default Re: My IR pics are always red

Been having the same problem and I think I have the same experience as Cabbage (everything comes out red). Yep, I wasn't saving the WB settings either. Going to try again...

I did not mod my camera (Panasonic G1) so have been trying to figure if not removing the filter has been the problem (I can see the light on my tv remote control though).

Thanks for this thread
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