Shooting Infrared – X-Pro1
Whilst looking into dark glass (ND Filters) – I came across a number of examples of metering anomalies with the X-Pro1, that suggested to me that this camera was seeing Infrared light, as well as visible light.
This was an exciting revelation. A camera that shoots IR out of the box, without requiring permanent internal filter modifications is a great tool for a whole new field of photography.
One quick way to find to – buy an IR filter, and try it out.
The filter in question is the Hoya R72 – a rather specialist filter designed to block visible light, and allow IR wavelengths above 720 nm to pass through to the sensor.
In practice, The R72 hits 50% transmissivity at 720 nm, just inside the Near Infrared (NIR)
I screwed it on – set ISO at 400 and the aperture at f8 for some DOF – and put the X-Pro1 on a sturdy tripod.
IR exposures can be long – there’s not much illumination getting through even, on a sunny day!
Here are some initial test shots, post processed into B&W:
You can see that any plant-life goes white – so leaves etc glow in a nice ethereal way – Skies have super contrast, as if you’d used a CPL.
Autofocus seemed to be a non issue for the X-Pro1, as the camera was focussing using the contrast in the image – so issues with different focal lengths for the different wavelength of light do not seem to matter using this system.
The original color files are deep brick red in color – So I set a custom WB setting to give me more neutral color IR shots from the camera -these processed more easily into the B&W shots shown here.
Very exciting stuff – and the good news is the Hoya filters are not expensive.
More Infrared X-Pro1 shots from my Flickr set: