Can’t resist sharing a few more of my Tucson IR Saguaro pictures.

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The camera which shot them was the only mirrorless APSC camera Pentax made — a not-very ergonomic square box camera designed by one “Marc Newsom”. Apparently said Newsom’s trademark was objets coloured bright yellow, something I am very in favour of. But the yellow K-01s were in short supply, and so I got a black one, which a company back east called Digital Silver Imaging converted to infra-red (I think by removing the anti-aliasing filter and putting an IR filter in its place. Thus the sensor records light wavelengths we don’t normally see — such as the brilliant white reflected by chlorophyl.

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For Bill The Galactic Hero DSI converted a Black Magic video camera in the same way – with an 830nm (nanomtetre) IR filter. The numbers determine the amount of regular light versus infrared light passing through the filter.

IMGP8472 copy I have another old Pentax camera – a K10D DSLR – with a 720nm IR filter. This lets more “regular” light through, and can produce some interesting colour effects:

IMGP8599 copy If you were to buy the only black-and-white dedicated digital camera, the Leica Monochrom M, it would set you back about $8,000 (body only, lenses extra). No doubt it is a wonderful camera. But for less than $300 you can buy a used Pentax K-01 (or spend $600 and get the yellow model new). For approx. $200, DSI or another company will install the IR filter of your choice. And for a total spend of around five hundred bucks/four hundred pounds (if you don’t mind doing some post-production work) you will have a very nice monochrome digital still (and video) camera.

IMGP8428 copy (My K-01 survived a brief drowning in the Klamath River. It is not waterproof or water-resistant and after getting wet it died. Patience, a screwdriver, an oven, and a plastic bag of brown rice brought it back to life, but I don’t recommend this experiment. )

Merry Xmas, and a happy new year!