Portfolio TWO now published

Copies of the RPS Portfolio TWO book are now appearing. In a magnificent collection of RPS member images and articles are three Infrared 100 items: my history of infrared photography, a similar article on thermal imaging by Francis Ring, and infrared photos from the RPS Digital Imaging Group. More info, and online ordering, on the RPS web site.

RW Wood 1910 paper now online

The paper from the October 1910 Photographic Journal, that started this whole centenary thing off, is now available in facsimile online. It was scanned from a bound set of 1910 Phot J's that used to be in Kodak's archive but is now in the care of de Montford University. This book, as shown above, is currently residing in the cabinet at Fenton House, as part of the Infrared 100 Exhibition, which closes on Thursday.

The RPS have linked the paper from this news page or from this direct link (PDF). Archival accessibility preparation by the ATSF palaeontology team ... ie me.

48 hour exposures

An image from the Hubble deep-field telescope has revealed the most distant, and therefore oldest, object ever discovered. It is a galaxy known as UDFy-38135539. A small one, but a galaxy nonetheless and the light from it has taken over 13 billion years to reach us; starting its journey only 600 millions years after the big bang. It is also receding so quickly that its light is red-shifted by a factor of 8.6, such that any visible light is shifted down to the deep infrared. You can see the starfield image on the ESO web site. The story on the BBC web site reveals that this was a 48 hour exposure and the ESO web site tells us that the teams responsible were NASA, ESA, G Illingworth (UCO/Lick Observatory and University of California, Santa Cruz) and the HUDF09 Team.

Lick Observatory has historically played a significant part in our infrared imaging story. During the 1920s and 30s scientists at the observatory experimented with infrared photography, as I mentioned in an earlier post. The infrared comparison photos that WH Wright took of Mars in 1924, which proved that Mars has an atmosphere to speak of, were taken there (and are included in the Infrared 100 exhibition at the RPS in Bath this month). If you're interested there is a 2006 paper on the Lick photographs in the Journal of Astronomical History and Heritage (Vol 9, No 2, p 181-184) but it's not available online.

And the 48 hours? There's a delicious coincidence which brings me to another historic infrared photograph taken at another famous American observatory, Mount Wilson. In this case the date is 1930, the photographer is HD Babcock and it is a blurry and unassuming image of some objects on a shelf. It is also the first photograph taken in total darkness.

Infrared photograph taken in total darkness by HD Babcock in 1930

I had a telephone conversation with an archivist at Mount Wilson but, so far, we have been unable to find out whether a real copy of this photo still exists. The one you see here is taken from an old edition of Clark, who says that the 'light' source was one or more under-run electric heaters. The plate was sensitised with neocyanine and the exposure was 48 hours at f/2.

So here we have the darker recesses of the universe, one distant and one very close. Both unobservable except using infrared imaging and both taking 48 hours to shoot.

Artistic thermal images on show in London

Millennium Bridge and Tate Modern by Joseph Giacomin

Professor Joseph Giacomin works at the Human Centred Design Institute at Brunel University. His 'day job' covers things like the design of cars but he has a sideline in fascinating artistic thermal images. Unusually, he is able to get his hands on one of these very expensive cameras and has the artistic eye to use it creatively. There is one of his images in the Infrared 100 exhibition at the RPS in Bath this month.

You can also get the opportunity to see some of his thermograms of the Millennium Bridge as part of an exhibition called Bridge Stories, which runs from this Friday, October 22nd, until January 21st at Arup Phase 2 in Fitzroy St, London. [More info]

Exhibition opening group photo

Left to right: Professor Francis Ring, Councillor Sarah Bevan, Derek Birch, Rosemary Wilman (RPS President), Andy Finney
Photo by Sally Smart