Tuesday, 30 April 2013
Recent Updates
I'm not in the habit of going back to revise posts I've made on this blog, but my recent research into Ilford has turned up new information that I've added to my posts on Ilford's G.30 & R.10 plates, as well as finding a data sheet which provides more information on Kodak's O.250 plates.
Sunday, 28 April 2013
Ilford Mk V Motion Picture Film
The 35mm film format was originally developed for motion picture cameras, but the convenience of the format's small size soon led to its adoption for still photography (35mm was known as 'miniature' film, by comparison to the 'medium' format of rollfilms, and large format sheet films and plates). The famous Leica wasn't the first still picture camera to use 35mm film, but it did help to popularise the format; subsequently the Kodak Retina was designed around the 35mm daylight loading cartridge, and by the second half of the 20th century, 35mm film became the dominant film format. Meanwhile, it continued (and continues) to be used for motion pictures and was only challenged by the quality of digital very recently. There were (and still are) some film emulsions produced explicitly for motion picture use which have never been generally available in short lengths for still camera use. However, there are photographers that use motion picture stocks for still photography, with online communities catering for this niche such as Project Double-X, and the Double-X and Orwo Flickr groups.
Looking for unusual film stock online, I found, and bought, a lot of 4 cans of Ilford Mark V motion picture film from a well-known auction site. Each can contains 50 ft of film; given roughly 5ft per 36 exposure roll of film, each can would hold about 10 rolls' worth of film. On a generic label, 'Ilford Photographic Materials', the particulars of the film are printed underneath and "Date of test 21.5.73". Shooting 35mm film at 24 frames per second uses 90 feet of film per minute: 35mm motion picture film is usually sold in 400ft to
1000ft lengths. A 50ft roll of film would last just over 30 seconds. Returning to the label, it's a question as to what the 'test' actually refers to: was the film in these cans produced for quality control purposes, to test the Mark V emulsion, or film base, or coating machinery? Or are these short reels produced for film makers to make tests with (although the syntax suggests otherwise)?
As a motion picture film, it has different perforations from still
camera film, but should run through 35mm cameras without any problems: problems occur when using 35mm still camera film in cine cameras, not the other way around. The general practice of edge marking on 35mm film is to print it to be read from the same side as the negative frames, but the lettering on the Mark V film is reversed. It's marked simply "IlFORD SAFETY FILM", obviously without frame numbering, but there are numbers at intervals on the edge of the film.
For a first test, I shot a roll of Mk V with successive exposures at 400, 200, 100, 50, and 25 EI, and then stand developed the film in Rodinal diluted 1:100 for an hour, to give me a rough guide to exposure to make further tests with.
After developing the first roll of film, I was struck by how grey the film looked. I assumed this to simply be fog due to age, although I later discovered the film also has a grey base. Exposures at 25 and 50 EI yielded usable results (it looks as though the highlights are beginning to block at 25); I had hoped that the film might be faster than that. At this point I didn't know what the film was originally rated at, but I had read online that it was 500 ISO; the results of scanning the negatives show them to be as grainy as a fast film, and in my experience of out of date film, as a broad general rule, faster emulsions are more affected by loss of sensitivity with age. There were also no indications of how these cans of film were stored over the past 40 years.
As a consequence of my research into Ilford Limited's operations in Ilford, I was also able to find out more about Mk V film. Silver By The Ton has an appendix of the company's products. Mark V film is listed under 'Cine and Aerial Films' with an introduction date of 1965. However, this list,
unlike the lists for plates, sheet films and rollfilms, does not have ASA/ISO
values attached. There is also no mention of any Mark I - IV iterations of the
film: I have read some speculation that Mark V may have used a version
of the HP emulsion, which was HP4 at the time (HP5 appeared in 1976). For the next couple of test rolls I tried developing Mk V as if it was HP5 Plus, using exposure to compensate for the film's loss of sensitivity, but using the same development times as HP5+. For a second test roll, I exposed the film at 25 and 32 EI, using my Agfa Optima Sensor. Cutting the roll of film in to two lengths, I developed half the roll in Rodinal 1:25 for 6m30s at 19ºC and the other half for 8m45s at 19ºC (I also shot and developed a roll using the Ilford Sportsman at the same time). I had hoped that a shorter development time might reduce the fog without the need to add anti-fog agents, but the effect seemed negligible. Comparing these results to the first roll of film which had been stand developed, I felt like the grain might be a little more pronounced, but, without shooting exactly the same subject matter, making an accurate comparison is difficult.
Further to my research on Ilford at Redbridge Central Library, I subsequently found the Ilford Technical Information Book. Rather than a book exactly, these are four ring bound manuals containing information sheets on Ilford's various products, and could be updated with new sheets when required. Dates on the information sheets of the Technical Information Book that Redbridge Library holds range from the early 1960s to the mid-1970s; Volume 1 contained the sheet for Mark V Negative Motion Picture Film, dated L68, i.e. December 1968. Although this was after I'd exposed and developed a few rolls of film, and had found workable parameters for using it, the sheet provided a wealth of information about the film:
The film couldn't really be described as having 'fine grain' now, but the wide latitude does appear to still be present even with the loss of sensitivity with age: having initially thought the film might now be as slow as 25, I shot another roll at 50 EI, and bracketed either side of this with usable results (the first test had been shot on a grey winter's day, not the best lighting conditions for this). For this roll I returned to stand development, developing half in Rodinal 1:100 for one hour, and half in Rodinal 1:150 for 3 hours (I had tried this time and dilution with HP5 recently, with good results).
I wouldn't want to be prescriptive about appropriate uses of different types of film: the grain of Mark V is more pronounced than that of modern 400 speed films, and so the choice of subject matter is a consideration when using this film. The grain can appear disruptively prominent in the skies of landscape shots, but from the results of the rolls I've developed so far the subjects that work best with Mark V film, in the examples below, are those such as the dim station interior or the photograph of Dagenham Brook in fading light.
Sources/Further reading
Silver by the Ton - A History of Ilford Limited 1879-1979, RJ Hercock and GA Jones
Ilford Technical Information Book Volume 1
Labeauratoire (with which I am in no way affiliated) is currently selling Mark V with an expiry date of 1979. Their recommendation is 400 or 200 ISO, which suggests their film was kept better than my stock.
Ilford Mark V Motion Picture Film |
Top: Ilford Mark V perforations. Bottom: HP5 Plus |
For a first test, I shot a roll of Mk V with successive exposures at 400, 200, 100, 50, and 25 EI, and then stand developed the film in Rodinal diluted 1:100 for an hour, to give me a rough guide to exposure to make further tests with.
Contact sheet of Ilford Mk V test roll |
Ilford Mk V, shot at 25 EI |
Ilford Mk V, shot at 50 EI |
Mk V film, 32 EI, developed 6m30s in Rodinal 1:25 |
Mk V film, 25 EI, developed 8m45s in Rodinal 1:25 |
This film has fine grain and wide exposure latitude. These characteristics, together with its high speed, make the film suitable for the production of pictures of very high quality under a wide variety of lighting conditions. Newsreel photography in poor light, filming at night and television work generally are situations in which this film is particularly useful. In the studio the high speed of the film makes great depth of field possible without the need for exceptionally powerful lighting units.The information sheet provides the original speed ratings, two of which are given: a 'daylight average' of 250 ASA and a 'minimum' of 500 (ratings for tungsten lighting are given as 200 and 400 respectively). Under 'Special Development Techniques' it also mentions Microphen for push processing for speeds up to 1300, although it gives no development times.
Two speed ratings are quoted. The minimum exposure rating is recommended when it is necessary to achieve the maximum film speed and image quality, but this is only possible when the processing conditions are strictly related to the exposure conditions. The average exposure ensures image quality of a very high order in a wide range of exposure and processing conditions.
Sensitometric curves when developed in ID11 at 20ºC (continuous agitation). From Technical Information Sheet A50.7 |
I wouldn't want to be prescriptive about appropriate uses of different types of film: the grain of Mark V is more pronounced than that of modern 400 speed films, and so the choice of subject matter is a consideration when using this film. The grain can appear disruptively prominent in the skies of landscape shots, but from the results of the rolls I've developed so far the subjects that work best with Mark V film, in the examples below, are those such as the dim station interior or the photograph of Dagenham Brook in fading light.
Mk V film, 50 EI, stand developed in Rodinal 1:100 for 1 hour |
Mk V film, rated 50 EI, stand developed in Rodinal 1:150 for 3 hours |
Ilford Mk V, 50 EI, stand developed in Rodinal 1:150 for 3 hours |
Ilford Mk V, 32 EI, developed in Rodinal 1:25 for 8m45s |
Sources/Further reading
Silver by the Ton - A History of Ilford Limited 1879-1979, RJ Hercock and GA Jones
Ilford Technical Information Book Volume 1
Labeauratoire (with which I am in no way affiliated) is currently selling Mark V with an expiry date of 1979. Their recommendation is 400 or 200 ISO, which suggests their film was kept better than my stock.
Labels:
35mm,
discontinued film,
expired film,
Ilford,
Ilford Mark V,
Mk V,
motion picture film
Wednesday, 17 April 2013
Ilford, Limited, Ilford
Corner of Cranbrook Road and Park Avenue |
My family moved to Ilford in 1983, a few years after Ilford Limited had closed its base in the town, moving operations to its site in Mobberley, Cheshire, where it continues to this day. I first became aware of the company some ten years later, learning black and white photography at college: the iconic bold san serif lettering on boxes of photographic paper bearing the name of my home town had quite a visual impact, beyond any personal associations. At the time I had little interest in the history of the company, but, partly due to finding Maurice Fisher's excellent Photo Memorabilia website as a result of researching old Ilford plates more recently, this interest in Ilford's history has grown.
I conceived a project to photograph the sites of Ilford Limited in Ilford with an Ilford camera. I bought an Ilford Sportsman camera for 99 pence online, and armed with some Ilfodata HS23 document film, I spent two consecutive afternoons in Ilford taking photographs. After taking the photographs on the first day, I went to Redbridge Central Library. In the local museum there's a small display about Ilford, entitled 'A Worker's Story', about the photographic company told through the experience of Mary Davis, who worked for Ilford between 1958 and 1976, when the company closed in Ilford. Surrounding the documents and photographs in this display are cases filled with Ilford cameras, including the same model Sportsman camera that I had just been using, and films, plates and papers. The highlight of the display is perhaps an Ilford Falling Plate camera, representing the company's first entry into the camera market, something they would not attempt again until the 1940s. Objects from the museum's collection are also displayed throughout the library itself in appropriate places: looking in the photography section, I found a display case on the shelf amongst the books containing an Ilford Sprite, a box of R.52 Panchromatic plates, three rolls of 35mm HPS film and a packet of lantern slide masks.
In the local studies section of the library, I asked if they held any material on Ilford Limited and the helpful staff provided me with a folder full of clippings, a copy of Silver by the Ton- A History of Ilford Limited 1879-1979,2 and four pages of a typed document called 'The Ilford Story'.3 Useful for this project, Silver By The Ton has an appendix detailing the early properties of the company, with sections of the 1864 Ordnance Survey map, showing the original buildings, although it does state that "very little documentary evidence has survived about the factory between 1879 and 1891".4
Entrance to Sainsbury's Ilford |
Riverdene Road, looking north-west |
Riverdene Road, looking south-east |
Derelict houses next to The Papermakers Arms |
Sainsbury's car park, view from the top of Audrey Road |
Sainsbury's car park, looking west |
Sainsbury's car park, looking south |
Entrance to Sainsbury's car park from Roden Street |
Roden Street, looking west |
View of Sainsbury's supermarket across Winston Way |
Golding Court, Riverdene Road |
Industrial building behind Riverdene Road |
View from Chapel Road towards Roden Street |
Notes
1 Alfred Harman's plates were first distributed by Marion & Co of Soho Square: Marion & Co began using the Britannia name for their own plates, and Alfred Harman lost a court case over the trade name in 1886. Silver by the Ton - A History of Ilford Limited 1879-1979, RJ Hercock and GA Jones, and The Ilford Story, unpublished typescript, initialled JCS, dated 11.5.60, held in Redbridge Central Library local studies section.
2 Silver By The Ton.
3 See note 1 above. The document states it was "Reproduced by the Ilford Azoflex Process". Azoflex was Ilford's dyeline document copying process, see advertisement here.
4 Silver By The Ton, p28.
5 At this point Alfred Harman was still making the emulsion in his basement in Cranbrook Road, but coating the plates in the cottage, transporting the emulsion in light-tight jars along Cranbrook Road by handcart.
6 The Ilford Story.
7 British Journal of Photography, June 29, 1888, reproduced in a centenary article in Amateur Photographer, May 16, 1979, p99.
8 The reproduction of the engraving in Silver By The Ton is provided with a key, which locates one of the houses from Grove Terrace, the rest of the terrace does not appear. The engraving does not show Clyde Cottages, which should be in the hazy countryside in the distance behind the factory, but it does show Magdala Cottages, and also mentions Napier Cottages, not shown.
9 'The borough of Ilford', A History of the County of Essex Volume 5 (1966), pp. 249-266.
10 A History of the County of Essex, pp. 249-266.
11 Essex Countryside Vol 32, no. 332 Sept 1984, p35. The source appears to be Silver By The Ton, which states 25,000 plates were ruined in April 1899, Silver By The Ton, p47.
12 Silver By The Ton, p20. However quality control at the new factory at Brentwood was inadequate, and production was concentrated back at Ilford, as, by 1905, "modifications at the drying rooms at Ilford had overcome the problems of atmospheric pollution." Silver By The Ton, p48.
13 Incidentally, Alfred Harman moved out to Chelmsford along this axis in 1886, but returned to another house on Cranbook Road, called 'Langsett', at the corner with Wellesley Road. Silver By The Ton, p150.
14 'The Britannia Works Company Limited A Progressive Institution', The British and Colonial Printer and Stationer, October 1st, 1896, p4. Illustrations reproduced in Silver By The Ton, pp36-37.
15 This may account for the incomplete terrace on the northern side of Audrey Road. Silver By The Ton, pp49-50.
16 At some point this was called the Sheepwalk Inn, but it has now reverted to its original name. http://pubshistory.com/EssexPubs/Ilford/papermaker.shtml
17 "Paper making was carried on at the Ilford Paper Mills, near Ilford Station, from c. 1862 to c. 1923. This business, which gave its name to Mill Street, appears to have been founded by William Simpson & Co., but later passed through the hands of several owners." 'The borough of Ilford', A History of the County of Essex, Vol. 5 (1966), pp. 249-266.
18 "1884: Introduction of Bromide & 'ALPHA' paper", http://www.photomemorabilia.co.uk/Ilford/Chronology.html
19 Silver By The Ton, p137.
20 Silver By The Ton, p137.
21 The British and Colonial Printer and Stationer, October 1st, 1896, p4.
22 A property called 'Rodenside' in a lane south of Roden Street, and the Loxford Social Club in Roden Street itself. Silver By The Ton, p61.
23 Ilford Recorder, Thursday February 28th, 2002.
24 Silver By The Ton, p50.
25 Silver By The Ton, pp61-62.
26 Silver By The Ton, p91.
27 Ilford Recorder, Thursday February 28th, 2002.
28 Silver By The Ton, p37, and The Ilford Story, which gives the opening as 1960, or more specifically "work was completed".
Sources/Further reading
Ilford Chronology on Photo Memorabilia
Silver by the Ton - A History of Ilford Limited 1879-1979, RJ Hercock and GA Jones
The Ilford Story, unpublished typescript, initialled JCS, dated 11.5.60, held in Redbridge Central Library local studies section
The British and Colonial Printer and Stationer, October 1st, 1896
Amateur Photographer, May 16, 1979
A History of the County of Essex Volume 5, 1966. Retrieved from http://www.british-history.ac.uk/report.aspx?compid=42730
Essex Countryside Vol 32, no. 332 Sept 1984
Graces Guide British Industrial History
Ordnance Survey maps dated 1864,1896,1919,1938, and 1961-63, retrieved from old-maps.co.uk; but also a large scale rates map, based on the 1896 OS map with revisions of 1912, and a scale model of Ilford town centre from the mid-1980s, both held at Redbridge Central Library.
Labels:
Alfred Harman,
Britannia Works,
history of photography,
Ilford
Ilford Sportsman
Ilford Sportsman 35mm camera |
This model is the earliest iteration; later Sportsman/Dignette cameras had larger viewfinders, then rangefinders, and selenium cell lightmeters. The camera is of all metal construction, the main section of the solid body appears to be cast, while the top plate and lens/shutter housing are stamped. The lens is a 45mm f3.5 Dacora Dignar, in a Gauthier Vario 3-speed shutter, with speeds of 1/25th, 1/50th, 1/200th and 'B'. The lens focuses down to 3 1/3 feet (for export Dacora simply converted their existing markings in metres to feet), with a depth of field scale around the lens. There is also a PC socket for flash and an accessory shoe on the top plate.
Ilford Sportsman top view |
The Ilford Sportsman was first marketed in 1957 (the Dacora Dignette itself appeared two years earlier); the manual which came with my camera is dated 1958. There are some very minor variations during the production run of the first body style, notably in the badging: the earliest versions had the word "Foreign" stamped into the leatherette underneath the Ilford name printed in white. This was then replaced by a small metal badge with 'Ilford' and "Made In Western Germany". In 1959 a new version of the Sportsman/Dignette appeared with a redesigned top incorporating a larger viewfinder, a change common to the design of cameras in the late 1950s (a contemporary example being the Vito B, with a larger viewfinder in its 1959 variant).
An interesting curiosity about the Sportsman's Dignar lens is that, although the smallest aperture marked on the camera is f16, the aperture lever goes further, perhaps to f22. The Dacora version of the camera was also available with a faster f2.8 lens. Obviously the aperture lever needs to travel further for the f2,8 lens and as the camera body housing has the same length slot for this lever, with f3.5 as the widest aperture, the slot is wide enough for the aperture lever to move further in the other direction, i.e. to a smaller aperture setting (this is a speculative explanation as I do not have a Dacora Dignette for comparison). The two images below were shot at f16 and the smaller aperture. From the results, any benefits of increased depth of field are offset by the increased and very clear vignetting.
Exposures of one second at f16, left, and the smaller aperture, right |
Sample image on Ilfodata HS23 |
Sample image on Ilfodata HS23 |
Sample image on Ilford Mark V film |
Sources/further reading
Ilford Sportsman on Photomemorabilia
Peter Wallage's Ilford page
Ilford Sportsman on Camera Wiki
Dacora Dignette on Lippisches Kamera Museum (in German)
Ilford Sportsman in Sylvain Halgand's collection (in French)
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