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Near infra-red photography

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Kite aerial photography in the near infra-red and ultra-violet

How to convert an 808#16D camera for near IR work

Photographic Techniques Index

Cameras dedicated to taking photos in the near infra-red (not to be confused with thermal imaging, where equipment is expensive but cheaper thermal systems are, hopefully, on the way) and ultra-violet are not readily available. However, normal digital cameras can be modified (1, 2, 3, 4, 5 & 6). See here for off-the-shelf converted cameras.

If you are prepared to use a tripod, most normal digital cameras can work effectively in the near infra-red part of the spectrum. See flickr (1, 2).

 As illustrated on the right, if a camera can 'see' the infra-red output from a TV controller, then it may be suitable. A Hoya R72 (small unmounted or conventional mount ) infra-red filter will be needed to block out visible* light. See the 'infra-red' link above for more details. 'Hot spots', focussing and exposure can be problematic.

* What is visible depends on both the individual and the intensity of the light

A Fuji S6500fd digital camera capturing the normally unseen infra-red output from a TV remote control.
From north of Westcraigs Hill, November 2007.

Armadale left, Standhill/Brownclair centre (R72 infra-red filter). Colour removed.

Barbauchlaw Glen and Woodend Farm, November 2007.

(Fuji S6500fd, R72 infra-red filter, ISO 200, f2.8, 1/2 sec. Colour removed.)

Frosty morning near Blackmoss (Armadale), January 2008.
Torphichen Hills (foreground) - IR converted Pentax Optio E35.
 

Taken with a 29, 808#16D HD video camera with the rear hot mirror replaced with a 9 (2015 price excl VAT), 6mm diameter, 830nm IR pass filter. The lens is screwed out, the hot mirror prized from the back of the lens and a 6mm diameter 830nm IR pass filter (LPF-830-0601) pushed in to replace it. The lens is then screwed back to a point where it focuses.

15 February 2013

 

 

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