Processing infrared
Here's what I do:
1. Establish a custom WB in camera for each new shoot session or change of lighting-easy and consult your manual
2. Import IR images into Capture One: Use the white balance dropper and WB something that should be neutral gray or white. If necessary shoot a White or Gray card.
3. At this point I find Capture one cumbersome and useless practically and to make my life easy, I then open image in PS.
4. In photoshop use channel mixer: when you do this for the first time you can create an "action" to swap channels-
red channel-red zero blue 100 blue channel red 100 blue 0 OK
Now for each image swap channels.
This is predicated on your using one of the "faux"color filters for IR. If you are doing ONLY B&W you can convert directly after WB with any program of your choice.
Peter
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I shoot a lot of infrared from 580nm up to about 850nm. I agree with you on the faux color and channel swapping. I do not use PS, but I can do channel swapping via another editor I use. The biggest problem with that path is that I loose my raw file and have to work out of a tiff file. Fortunately I do not do much channel swapping. And I have played around with hue shifting in C1 to some degree of success and have some presets for the Color Editor tool that will do a pretty good job of swapping red and blue...
Here is what I do:1) I prefer to set the WB in the camera (I shoot raw) by using green grass, or green foliage. This give me a really good starting point and most of the time, I just leave the WB alone in C1. However, if I do need to set the WB in C1, I use the dropper and select the same subjects in the image (green grass or tree leaves). I have found that white or gray cards do not do it for me.
2) I change my Preferences/Exposure Levels Tool Channel to "Red, Green, and Blue Channels" instead of the normal "RGB Channel". This often makes a notable difference on some IR filters. Then I do an auto adjust for everything except the WB and autorotation This is my starting point for editing.
3) Sometimes I set the image to B&W, and if I do, I test each color sensitivity slider in the B&W Tool by moving them to each end of the control points.
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Using a Sony a6300, with a full spectrum conversion performed by Life Pixel.
Easiest way with an 830nm filter, is to set the custom white balance, using the ExpoDisc 2.0 (https://www.bhphotovideo.com/c/product/1073251-REG/expoimaging_expod2_82_2_0_82mm_white_balance.html ). Then import into C1, applying the Landscape - Color 2 built-in adjustment.
Only thing to decrease the Exposure, which C1 has a tendency to overdue, especially when there is lots of clear sky (which is all black).
This technique is useless for these filters:
- Kolari Vision's IR Chrome ==> Have had some luck w. some of the fluorescent white balances
- Spencer Camera's Ultra Blue
- Singh-Ray's 690nm
Just tried that filter today, with a rented Tamron 28-200. Funny thing about the 690nm filter, is that the ExpoDisc 2.0 picked 2700 degrees Kelvin as color temperature, but C1 changed it to < 1900 degrees.
Niels
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I have a fuji xt-2 infrared conversion 590. I used to used adobe Dng profiler. Unfortunately adobe has stopped supporting the program and my mac won't open the app. I can process the files as b/w in lightroom or capture 1...but would welcome alternative ideas
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I'm hoping Kevin Pinkerton is still active within C1. If so, Kevin, can you give a bit more explanation about your method for I/R false colour channel swap? I have found the bit about Preferences and switching to red, green and blue, but am lost at the point you mention 'Auto adjusting' onwards. I have requested a facility for channel swapping on C1 as in PS6 on a couple of occasions. Sadly no success for my software. (It is so simple to achieve the effect I'm aiming for in PS6.) I cannot get anywhere near the same using C1. Sadly I'm at a stage now where I may have to ditch my current Mac as it hasn't been updated, if I do an update I will loose my current PS6 and C1 programs because I have refused to go down the subscription path. I am a hobby photographer and would never recoup subscription monthly payments for PS6, so I have tried to hang on for as long as possible. I have no intention of changing my cameras, so I have no need for anything else. Kevin, please make contact, any info would be greatly welcomed.
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