How do I process this RAW file taken through R72 filter to simulate IR?

[dellaaa]

Hi,

I am currently using a Fuji XPRO1 with an R72 infrared filter to simulate B&W infrared photography. By that I mean green foliage that goes almost white and blue skies that go almost black.

I have a couple of questions.

First, is there any advantage to using the R72 filter in order to get B&W infrared effect. I ask this because I use the technique described by Debbie Grossman here :

Software Workshop: Fake Infrared Photography Using Adobe Camera Raw

Get the new black-and-white infrared look by using clever RAW conversion settings

www.popphoto.com

The technique use a unfiltered RAW file, it converts to HSL grayscale, then adjusts the blue to -100, the green and yellow to +100. The effect is not bad. Look at the the B&W image at the bottom of this post.

So the question is what is the advantage of shooting with the R72 filter?

Here is the Fuji Image, how do I process this in a RAW editor to make the greens go white and the sky darken?

RAW file shot with R72

Here is an example of an unfiltered RAW file modified using the method described by Debbie Grossman above:

RAW file shot unfiltered and converted

I also notice the Fuji lens doesn't have a hot spot as others have mentioned, any idea why?

 

[tony brown]

Hi,

I am currently using a Fuji XPRO1 with an R72 infrared filter to simulate B&W infrared photography. By that I mean green foliage that goes almost white and blue skies that go almost black.

I have a couple of questions.

First, is there any advantage to using the R72 filter in order to get B&W infrared effect. I ask this because I use the technique described by Debbie Grossman here :

http://www.popphoto.com/how-to/2013...e-infrared-photography-using-adobe-camera-raw

The technique use a unfiltered RAW file, it converts to HSL grayscale, then adjusts the blue to -100, the green and yellow to +100. The effect is not bad. Look at the the B&W image at the bottom of this post.

So the question is what is the advantage of shooting with the R72 filter?

Here is the Fuji Image, how do I process this in a RAW editor to make the greens go white and the sky darken?

RAW file shot with R72

Here is an example of an unfiltered RAW file modified using the method described by Debbie Grossman above:

RAW file shot unfiltered and converted

I also notice the Fuji lens doesn't have a hot spot as others have mentioned, any idea why?

An R72 filter is not for InfraRed simulation. It IS an InfraRed filter. The important thing to check is whether your camera has much (or any) InfraRed sensitivity left after the built in sensor filter has done its work. R72 strongly filters out visible light and the built in sensor filter strongly filters out IR light to which sensors are much more biassed towards.

The first check is to see whether your TV remote LED shows brightly in a snap made while a button is pressed. If not, then genuine IR photgraphy using your particular camera is a dead end. For astronomical use, Canon and others sell a version of their cameras with the IR sensor filter removed. My old Minolta Dimage7 has a good sensitivity to IR, for example. Otherwise, you would need very prolonged exposure to record it and the result would be swamped by the residual day light.

Here is the Hoya graph of the cut off of visible light from an R72 filter. (View at 'original size.) If your camera also removes the IR light itself, there's nothing much to see.

--
Cheers, Tony.

 

[KBKB]

Hi,

I am currently using a Fuji XPRO1 with an R72 infrared filter to simulate B&W infrared photography. By that I mean green foliage that goes almost white and blue skies that go almost black.

I have a couple of questions.

First, is there any advantage to using the R72 filter in order to get B&W infrared effect. I ask this because I use the technique described by Debbie Grossman here :

http://www.popphoto.com/how-to/2013...e-infrared-photography-using-adobe-camera-raw

The technique use a unfiltered RAW file, it converts to HSL grayscale, then adjusts the blue to -100, the green and yellow to +100. The effect is not bad. Look at the the B&W image at the bottom of this post.

So the question is what is the advantage of shooting with the R72 filter?

Here is the Fuji Image, how do I process this in a RAW editor to make the greens go white and the sky darken?

RAW file shot with R72

I processed the above in Lightroom with the following settings:

• Temp: -86
• Tint: -37
• Exposure: +0.80
• Contrast: +35
• Whites: +55
• Blacks: -40
• Clarity: +15
• Tone Curve: Highlights: +5, Lights: +5, Darks: -5, Shadows: -5
• B&W:
• Red: -56
• Orange: -95
• Yellow, Green, Aqua: 0
• Blue: -5
• Purple: +50
• Magenta: -54
• Sharpening Amount: 50
• Luminance NR: 45
• Color NR: 30

Temp and Tint were set by using the WB eyedropper on a light spot in the foliage.

Settings in the B&W section had a lot of impact on the tone of the image.

When using the filter, the foliage will be a lot brighter when the sun is shining on it. The sky will be darker without clouds.

 

[Pixel Poetry]

--
PX

 

[Allen Gerdes]

Here is my try using PSPX5:

Regards.....Allen

 

[Michael 2012]

Hi,

I am currently using a Fuji XPRO1 with an R72 infrared filter to simulate B&W infrared photography. By that I mean green foliage that goes almost white and blue skies that go almost black.

 

[GlobalTvlr]

...

 

[dellaaa]

You added a lot of grain I see, what did you do to get the B&W effect?

 

[dellaaa]

I think I may be a step or two ahead of you. The first picture in my post was taken with an R72 on the Fuji, so I think that implies I can take pictures through a R72 filter with the camera. The Fuji has a weak IR filter compared to other cameras that I have tried this with.

The questions were what's the advantage to shooing through a R72 and how do I process it once shot.

 

[dellaaa]

Whats the point of this post?

 

[tony brown]

I think I may be a step or two ahead of you. The first picture in my post was taken with an R72 on the Fuji, so I think that implies I can take pictures through a R72 filter with the camera. The Fuji has a weak IR filter compared to other cameras that I have tried this with.

The questions were what's the advantage to shooing through a R72 and how do I process it once shot.

That looks like the last vestiges of visible light. Where are the light greens of the vegetation then? What happens if you take a similar photo with the camera set to take monochrome images?

Did you try the InfraRed remote control test? A typical wavelength for these is 940 nm and if your camera sees that well, then you are ready to go. If not, just use post processing simulation and forget the filter as in the nice B & W example you posted originally.

Here's a quick snap of the end of my TV Remote taken a minute ago in the dusk:-

--
Cheers, Tony.

 

[Afandi Hj Mahat]

here's my try