Wednesday, 6 January 2021

Domain shenanegans

 I have changed the registration for the domain and there may have been some disruption during this process. hopefully all is back to normal now!

Tuesday, 18 August 2020

Laurie Klein: New book and Infrared Photography Course

 The first edition of Laurie and Kyle Klein's book, Infrared Photography: Artistic Techniques for Brilliant Images, came out in 2016 (and was featured here). Now there's a new edition from Amherst Media with extra input from technologist Shelley Vandegrift. I haven't as yet seen the new edition but I like the earlier books so this should be worth consideration.

Info on the book is on this web page.

Laurie and Shelley are also giving a three day "Intensive" course towards the end of September. This will be held using the ubiquitous Zoom running from noon to 1700 (I assume east-coast USA time) and with a course fee of $695. It's aimed at photographers across a range of infrared experience. The middle day will be a practical, where you shoot around your own area with the opportunity for discussion. More info on Laurie's web site.

Monday, 27 July 2020

Weegee and Kubrick: The infrared connection

I have recently been reading Christopher Bonanos' biography of the famous New York photographer Weegee. Weegee's reputation grew in the 1930s as a news photographer covering mostly crime and fires at night. He soon developed a style that transcended standard news pics partly due to his innate sense of a good image, but also his shots of the reaction to events, as much as the events themselves.

One item in Weegee's armoury, besides his police radio and pocketfuls of flashbulbs, was infrared. He picked up on it in the early 1940s, a few years after it become available from companies like Kodak through regular retail channels. Before the mid 1930s, if you wanted to take infrared photographs you had to sensitise the plates (for it was plates) yourself. Now there were plates with a sensitivity beyond 700nm which could survive being retailed and being carried around by a busy photographer.

Bonanos places Weege's first use of IR for publication in April 1942, shooting during a wartime blackout drill. He returned to the medium "again and again" using the phrase "Made with invisible light" and many of his most recognisable shots were made this way. He shot audiences in cinemas, the opera and even a circus. Sometimes by rigging IR flood lights or more often by using flash with special IR-pass coated flash bulbs.

My favourite, entitled Opening Night at the Met was taken on December 3rd 1944 and shows a small group in the audience, including a priest and a lady with opera glasses. Behind them stand two women and a man. He is displaying classic IR 'five o'clock shadow' (caused by IR penetrating the skin slightly ... he was probably clean shaven) and one woman shows another feature of the infrared look, which makes eyes look like dark pools. This may well be Kodak film but it shows little of the usual IR film look with halation. This is simply because it would have been a half-plate negative: the effects are there but more subtle than we got with 35mm film.

I can't directly show you the image but I can link you to it on the Getty site. It's a gem: Opening Night at the Met. They're watching Faust by the way.

Getty have 84 more examples of Weegee's infrared photography. This search will get you there. Alternatively, there are 43 shots online at the International Centre for Photography, where Weegee's archive is held. These include some of him with his infrared kit, ready to shoot, and even disguised as an ice cream seller.

Via the Bonanos book I discovered that not only was Stanley Kubrick an admirer of Weegee (his "last great set of photographs" was shot during the filming of Dr Strangelove) but Kubrick used infrared several time during his earlier career as a photographer. Some examples of his work for Look magazine can be found online, although it's unclear how many were actually published. One striking shot, very reminiscent of Weegee's work, is from a set Kubrick shot for Look in a set titled "Park Benches-Love is Everywhere," from 1946. In it, a young couple are seen disturbed in mid-kiss on a fire escape, looking up at the camera. It has the classic characteristics of an infrared portrait, with dark-pool eyes, and the light pattern tells us it was shot with flash.

You can find the fire-escape photo, along with other Kubrick stills work, in this review of a retrospective exhibition in 2018 called Through a Different Lens: Stanley Kubrick’s Photographs.

There's some interesting information on infrared flash in a blog post by social documentary photographer Daniel D. Teoli Jr, including the kind of bulbs used by Weegee. In case you're wondering, electronic flash guns do give off infrared, so you can filter them for candid photography. Usually, no-one will see the flash unless they are looking at the gun, in which case they'd maybe see a brief dull red light. This would be partly due to the very low sensitivity of our eyes to very deep red going on infrared (0.01% of our green sensitivity at 750 nm according to Allen's astrophysical quantities) and to the tiny amount of deep red that the filter lets through.

Christopher Bonanos' biography of Weegee is called Flash: the Making of Weegee the Famous and is published by Henry Holt. It's a very readable account not only of the man's eccentric life but also, in passing, builds a picture of what it was like as a jobbing news photographer on a crime beat in New York between the 1930s and 1940s in New York. And I am cited twice in the notes.

Sunday, 10 May 2020

Lucky Infrared Images of Jupiter

Back in 2011 I noted some IR shots of outer planets by Mike Brown at Caltech, at a wavelength of 1.5 µm.

Last week another fascinating set of images, this time of Jupiter, emerged. These were at 4.7 µm and rather than a demonic cricket ball this time the infrared image resembled a jack-o'lantern.

This wavelength reveals a glow from relatively warm deeper layers of the atmosphere breaking through upper cloud layers. In visible light this is obscured by even higher haze in the atmosphere. The image here is a composite built from a number of so-called 'lucky' images, captured from earth during brief pauses in our atmospheric turbulence. The instrument was the Gemini North telescope on Hawaii’s Maunakea volcano, at an altitude a little over 4,200 metres.

To find out more, I'll point you at the paper available on the Gemini Observatory web site.

[Image credit: International Gemini Observatory/NOIRLab/NSF/AURA M.H. Wong (UC Berkeley) and team Acknowledgments: Mahdi Zamani.]

Wednesday, 4 March 2020

Flying high ... for infrared

One of Nasa's longer-running infrared astronomy projects is the Stratospheric Observatory for Infrared Astronomy (SOFIA). It uses a pre-loved 747 with a suitable new aperture to fly high and catch infrared radiation from above 99% of atmospheric water vapour.

Not quite flying your Lear Jet to Nova Scotia for a total eclipse of the sun but still pretty cool.

Read about it on the Scientific American blog.