Comparisons Between IR Converted Cameras with Different Filter Depths

Clive R. Haynes FRPS


Nikon D610         720nm Filter

Photos: Dr. Charles Ashton

Above: RAW File
Above: Lightroom Black & White

Above: RAW (Lightroom) to Photoshop
for Channel-Swap
Above: (Photoshop) Black & White
after Channel-Swap
Above: Channel-Swap plus selective application of Topaz Adjust 'Dramatic II'
Above: 'False Colour' via Channel-Swap, image converted to Lab Mode, a & b Channels Adjusted

Note: It's important when processing the original image whether in Lightroom or ACR to correct for Chromatic Abbe ration. Failure to do this can result in 'colour fringing'. The two details below illustrate this.

As a matter of normal working practice, I always correct for chromatic aberration, even if I reckon the lens may not exhibit the error. This way I'm always covered against the possibility of being surprised by its appearance.

Above: False Colour detail without Correction for Chromatic Aberration

Above: False Colour detail with Correction for Chromatic Aberration

Filters for Infrared

'Channel Swapping'

Hot-Spots, Flares, Bit Depth & Gamut

Lab Mode and 'False Colour'

Digital infrared Photo Galleries

Know-How Contents