I've seen several pictures like this and don't know how to get that "colorized" IR look. I can adjust an IR photograph to greyscale and then apply auto levels and get a great looking "black and white" IR shot, but how is this look achieved? I have PS 7. Thanks for any help.
I asked the same question a while back and got zero response :-/
I'm just playing with some IR shots I took at the weekend which I'll post later this week. As far as I can gather you get the colourised effect by swapping colour channels in the channel mixer. The effect I was after was white trees/blue skies - this is achieved by dropping red to 0 and upping blue to +100 in the red channel, and dropping blue to 0 and upping red to +100 in the blue channel.
I'm still experimenting so can't really tell you more, but I'm finding that auto levels -> enhance per channel contrast and then swapping the channels is giving some reasonable results.
The biggest thing I missed before all this was setting a custom white balance with the IR filter on. D'oh!
I believe you can acheive this by using the Hue/Saturation tool with the "Colorize" box checked. Never tried it myself but it seems like it would work. Can anyone confirm?
I've never shot IR but I assume you can shoot IR in colour. If so, it is easy to desaturate all the colors to a greyscale look (ie, NOT use the "greyscale" command), then re-establish one or more colours as desired.
I believe you can acheive this by using the Hue/Saturation tool with the "Colorize" box checked. Never tried it myself but it seems like it would work. Can anyone confirm?
I've never tried it for IR but it works for regular RBG images.
i think you might be having trouble with this because you are actually taking black and white IR's and then trying to figure out how to add color. I'm pretty sure the IR effect is done totally in post-processing. They do the IR processing and black and white on a layer, and then they keep the original color image, and play with the saturation, and put that on another layer, etc. Just play around with it.
You are right, I've seen comments from Tess on other sites where she's saying just that ... hand-colored in photoshop.
Originally posted by JasonPR:
i think you might be having trouble with this because you are actually taking black and white IR's and then trying to figure out how to add color. I'm pretty sure the IR effect is done totally in post-processing. They do the IR processing and black and white on a layer, and then they keep the original color image, and play with the saturation, and put that on another layer, etc. Just play around with it.
Use a 72 filter which is a near IR filter and leaves color in the image. Swap the red and blue channels and auto level. NO hand coloring involved. Can't use an 87 filter, just a 72... Hope this helps...
"Use a 72 filter which is a near IR filter and leaves color in the image. Swap the red and blue channels and auto level. NO hand coloring involved. Can't use an 87 filter, just a 72... Hope this helps... "
Hi Dave
Could you give me more info on this filter (Make) as I would love to try taking photos with this.
Dave's photos are just stunning .... Looking forward to try this..
T
Before you rush off and buy the filter - I'd check that it actually works with the 10D - I know the D60 has a hot filter that makes it unuseable for IR work....
It should. The same hot mirror on G2 doesn't stop it from being usable. The hot mirror only reduces the IR level, but does not eliminate it.
The only problem is, the exposure time is a lot longer now (2-3 seconds), versus 1/10 to 1/20 second on the G1, and hence, you're going to run into issues such as subjects moving due to wind.......
Originally posted by Gordon:
Originally posted by agwright:
Cheers Bod
Dave's photos are just stunning .... Looking forward to try this..
T
Before you rush off and buy the filter - I'd check that it actually works with the 10D - I know the D60 has a hot filter that makes it unuseable for IR work....
That's true, but the estimates I've seen for the D60, in bright sunlight, shooting at ISO 100, at f4.5 seem to require shutter speeds up around 3 or 4 minutes, which isn't very useable.
I don't know how the 10D fares.
Edit: there is a whole lot of discussion on techniques for this on dpreview - search the forums for infrared and 10D
Also there is a load of info about doing the blue sky channel switching thing there too.
