I said in my last post that I would post some of my infrared photographs that I have processed as colour. Here is a selection, firstly from the camera that had been converted with a 720 nm filter over the sensor, then from the full-spectrum camera with a selection of filters fittted to the front of the lens.

Canon 350D – Converted Camera:-

The above two images are the same original image. The first one was processed using channel mixing and layers and the second one shows what happens when you then adjust the hue – in this case plus 163.

I have done the same with the next two images of Alnwick castle – first the one without hue adjustment and the second one with a positive adjustment of about the same magnitude, although, a small negative or positive adjustment can make quite a difference and I would urge you to experiment.

Full Spectrum Camera with Variable Filter.

530 nm:-

Filter set to 640 nm (approx):-

You will notice that there is more of a red tone predominately in the originals – turning the trees orange instead of yellow as with the 530 nm filtration.

750 nm:-

With the 750 nm filter there was not much scope for hue adjustment because very little visible light was getting in, mostly infrared. I could have added a bit more contrast to the monochrome image but there was little hope of getting much of value with the channel mixed version.

850 nm Filter:-

As with the 750 nm filter there was no scope for bright and colourful images but with the mono conversion, I got a beautifully contrasty image.

It occurs to me that to get coloured “infrared images” we have to let a bit of visible light in too and experiment with the image using a myriad of adjustments using channel mixing, layers, curves to mention a few, to suit your individual taste. So far, I have only given you the basic version of channel mixing. Some mixes involve adjusting the green slider, having different mixtures of the red and blue channels or a combination of all these. Even then you are just scratching the surface. I mentioned Rob Shea a few posts ago, he provides a whole range of Camera Profiles for different cameras. He also provides a wide selection of Photoshop Actions which can be imported into Photoshop – instead of making the adjustments of Channel Mixing, Layers and other adjustments, you click on an “Action” and the effect of several adjustments are applied in one click. Follow these links for more:-

There are full instructions on his site on how to install these resources andyou can have them and much more for the price of giving him your email address. I have them and in terms of the Photoshop Actions, a good way of finding out about the many adjustments that you can try out and provide a quick way of finding out which adjustments and effect you like.

I must say at this juncture that I have no connection to Rob Shea except I follow him on Instagram.

That is all for today folks. I hope that you will be back soon.