Comparative images for a range of Front-of-lens IR filters
Clive R. Haynes FRPS
Above: 950nm Filter. RAW File
Above: 950nm Filter.
With Adjustment Layers for 'Levels' > Auto + 'Channel Swap'
With Adjustment Layers for 'Levels' > Auto + 'Channel Swap'
Above: 950nm Filter.
With Adjustment Layers for 'Levels' > Auto + 'Channel Swap' + 'Black & White'
With Adjustment Layers for 'Levels' > Auto + 'Channel Swap' + 'Black & White'
Comments:
This test revealed a RAW image which is red with a more pronounced magenta cast and good contrast.
After applying 'Levels' > 'Auto' and 'Channel-Swapping, colour when compared to the 850nm filter, is noticeably magenta in hue.
The black & white result is very acceptable with good contrast. It presents a good tonal range for personal expression. In this respect it is similar to the 850nm filter.