Comparative images for a range of Front-of-lens IR filters

Clive R. Haynes FRPS

 
 
Above: 760nm Filter.   RAW File
 
 
Above: 760nm Filter.  
With Adjustment Layers for 'Levels' > Auto + 'Channel Swap'
 
Above: 760nm Filter.
With Adjustment Layers for 'Levels' > Auto + 'Channel Swap'
+ 'Black & White'

Comments:
As expected, the result is very similar an almost indistinguishable from the 720nm filter.

Once again the test revealed a very red looking RAW file with good contrast.

After applying 'Levels' > 'Auto' and 'Channel-Swapping, some interesting cool slightly cyan-blue and delicate magenta colours were revealed.

The black & white result is useful with a little more contrast than the 680nm filter. It presents a good tonal range for personal expression.

 
Next - 850nm

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