Pink Grapefruit Infrared Photography

JeanPierre Martel wrote:

In order to take Pink Grapefruit IR, you just need two things: a full-spectrum camera and a blue 80A filter (7$US). That’s all. Automatic white balance. No channel swapping. No Photoshop wizardry.

I know, you don’t believe me. You probably think: ‘If it was as simple as that, someone would have found it before.’

Well, let me show how Pink Grapefruit IR is done.

Usually, a photo taken with a full-spectrum camera has an heavy Pink-Bubble-Gum look like this:

It lacks contrast, need post-processing, maybe colour-swapping, and so on.

But, once a blue 80A is screwed on the lens, you will get this at once, also without post-processing. I repeat: without _any_ post-processing. It’s like magic.

However, on a bright sunny day, the balance between visible light and infrared rays is different. Consequently, a Pink Grapefruit IR shot will be oversaturated. That was the case with the 4 photos published at the beginning of this threat.

To correct that, I’ve taken a Pink Grapefruit IR shot of a ‘neutral density card’. I don’t know how this is called in English. It’s a series of three cards: one black, one grey and one white.

I’ve taken a shot of the grey one and have created a correction curve under Photoshop.

When a Pink Grapefruit IR shot is oversaturated, I’ll blend 70% or 60% the 'over-the-top' image with its colour-corrected copy (at 30% or 40% - the latter is more yellowish like the photo above). That’s how the 4 images at the beginning of this thread were created.

It’s that simple.

Just pass a blue 80A filter in front of your lens and you’ll see it on the back LCD of your digital camera. You won’t believe your eyes.

My full spectrum cameras manage results much close to normal without any filter needed. I think you just need to select a different white balance.

Here's a panorama with my GF2 used full spectrum

https://flic.kr/p/oUwRbU

There are times when I get significant colour changes particularly with fabrics here the uniforms were black & orange to match the car (this one also via the GF2)

https://flic.kr/p/rFuQaP

And here's a recent one from my A7ii (but without an foliage)

https://flic.kr/p/2m3ezUG