Showing posts with label microrecording film. Show all posts
Showing posts with label microrecording film. Show all posts

Saturday, 28 June 2014

Kiev-30M

Kiev-30M (open, the red dot, just visible, indicates the shutter is cocked)
The Kiev-30M is the penultimate model in a series of 16mm subminiature cameras produced by the Arsenal factory in Kiev, Ukraine. The original model of the Kiev subminiature series, the Vega, was based very closely on the Minolta-16. Like other Eastern Bloc post-war cameras copied from (mostly German) cameras, the Kiev Vega then evolved separately from the camera it was based on as the design was modified with each successive model. The second version of the Kiev Vega added the ability to focus the lens, something that the Minolta-16 cameras didn't have until much later models (though there were close-up filters available). The cassette was redesigned for the Vega 2 with a smaller spool than that of the Minolta-16, increasing the number of frames on a roll of film from 20 to 30. The Kiev Vega 2 was succeeded by the Kiev-30, which utilised a larger frame size (13x17mm) in a redesigned body. This larger frame size reduced the number of frames on a roll of film from 30 to 25 (although I wonder that the reason for the camera being called the Kiev-30 is due to this change to the preceding model). The Kiev-30M had a couple of minor changes from the Kiev-30, simplifying the camera by losing the PC flash sync socket and the manual exposure calculator on the back. The last 16mm model from Arsenal was the Kiev-303, which featured a redesigned plastic body in a variety of colours, and had four speeds rather than three, with 1/125th and 1/250th instead of the previous top speed of 1/200th.
Kiev-30M box contents
My Kiev-30M came in a box set from the Lubitel shop in St Petersburg (I wrote a post about the camera shortly afterwards, but, recently, having used it more, I felt it was worth substantially rewriting this). Although the box had seals that had been broken, everything inside appeared as new. As well as the camera, the contents are: a camera strap and case; a second film cartridge, in a plastic box; a reducing frame for using the 16mm negatives in a 35mm enlarger; a reel to fit in a developing tank; the camera manual; and a piece of paper with a list, possibly of suppliers. The manual is dated with a stamp of April 1989. The three rolls of Svema Foto 65 film (which came from a different camera box) have a 'develop before' date of 'IX/1986'.

Kiev-30M (closed)
The Kiev-30M is very compact 86x47x28mm when closed, extending to 108mm wide when open. Despite the camera's small size it is relatively heavy at 190 grams as the camera is constructed almost exclusively from metal and is entirely manual and mechanical. The controls visible on the side of the camera are two wheels, one to set the limited range of shutter speeds, 1/30th, 1/60th and 1/200th; the other controls the aperture, from f3.5 to f11. On the underside of the camera is a window showing the exposure number. To take photographs, the camera's outer body shell slides to the open position (as in the image at the top of this post), which uncovers the shutter release and focus control; the two glass windows align to the viewfinder and lens. The window that covers the lens can be removed by sliding it out sideways: the Minolta-16 had filters which could be inserted here, although the Kiev-30M box didn't come with any filters. The lens is a 23mm Industar-M, which on the 13x17mm frame size provides roughly a (horizontal) 40ยบ angle of view. The lens focuses down to 0.5 metres, markings are also provided for 1 and 2 metres, in black, while picked out in red are the infinity mark and, close to this, a dot. The red dot is the focus setting for 5 metres, which serves as a hyperfocal position for all apertures. Also uncovered on the camera's top plate is a film plane indicator, while the serial number is engraved on the underneath.

Depth of focus table from the manual;
the '15' in the focus setting column must be a misprint for 0.5
Opening the camera cocks the shutter and advances the film: the shutter appears to be a guillotine-type, and when cocked, there is a red dot to indicate this visible in the lens window. The push-pull film advance does mean that opening and closing the camera without taking a shot results in a blank frame, but without opening the camera it isn't possible to look through the viewfinder.

Kiev-30M opened for loading
To load and unload the Kiev-30M, the outer shell has to be removed completely: there is a catch which can be released only when the camera is in the open position. This lays bare the exposure counter wheel: when loading a film, this needs to be manually reset by aligning a red line on the wheel with another line on the bottom plate. The film cassette is loaded by opening a cover on the top. The film cassettes have two chambers, one smaller, without a spool, for the supply side, with take-up side being slightly larger to accommodate the spool. As a legacy of the camera's origins as a copy, Minolta 16 cassettes are said to be compatible with the Kiev cameras. With a frame size of 13x17mm rather than 10x14mm, the Kiev-30M is designed for unperforated 16mm film (perforations will be visible in the image area). The cassette takes a 45cm length of film: the frame counter goes up 25, with every third number represented with two dots between (there is also a red dot between the numbers 16 and 19). When loading the cassette, a small pressure plate with a tiny tab needs to be pulled back to slide the section of film between the two chambers into position, not immediately obvious on a first attempt.

Kiev-30M cassettes
Kiev-30M with expired Svema Foto 65 film
I shot two of the Svema films while in St Petersburg, loading the cartridges inside the hotel room cupboard with all the lights in the room turned off. I finished the second roll of film once I had  returned home and stand developed it in Rodinal diluted 1:100 for one hour, using the technique I'd tried with film from the Mamiya-16 Automatic of taping the 16mm film, emulsion side out, to a length of 35mm film and loading this on a normal 35mm developing reel. The film is Foto 65, the 65 being the film's GOST value, the Russian speed scale, equivalent to 20 DIN/80 ASA. Translating the text on the box, the film was originally priced at 10 kopecks, surely very cheap even 30 years ago, and has a developing time of 5 minutes, although there's no indication of the developer required. The price of the film refills perhaps reveal why the 16mm subminiature format persisted in the Soviet bloc (the last Arsenal subminiature camera, the Kiev-303, was produced c.1990), while elsewhere Kodak's 110 format essentially used market dominance to push out all the previous competing 16mm systems twenty years earlier, where most cameras had proprietary cassette designs.

Kiev-30M with Kodak WL Surveillance 2210 film, scan from negative
When loading the cartridges with 16mm film from 100ft rolls, it is possible to get more than 45cm of film into the supply side chamber, and it's relatively easy to get around 30 rather than 25 frames, although the frame counter doesn't turn around any further after the number 25. With single perforated film, if the film is loaded into the cassettes with the perforation side towards the plastic bridge between the chambers, the perforations appear at the bottom of the frame, to my mind less obtrusive to the resulting photographs. As I found when using the Mamiya-16 Automatic, subminiature negatives are too small when scanned with flat bed scanners to properly resolve detail. To really appreciate the results from the camera, I recently printed a number of shots from the Kiev-30M in the darkroom. The 16mm reducing frame which came in the box proved very useful when printing, and given the small size of the negatives, I had to wind the enlarger head almost to the top of its post to achieve a print size of 5x7 inches. The images below are all scanned from prints on Kentmere VC Select paper.

Kiev-30M with Kodak WL Surveillance 2210
Left: scan from negative at 3200dpi; right scan from 5x7 inch print for comparison
Kiev-30M with Kodak WL Surveillance 2210
Kiev-30M with Kodak WL Surveillance 2210
The Kodak WL Surveillance 2210 film for the shots above is a 400 ISO film, and the grain is particularly pronounced as a result of the subminiature frame using approximately a quarter of the film area compared to a standard 35mm frame. I also shot some Agfa Copex HDP 13 microfilm with the Kiev-30M (although not stated, it's a reasonable assumption that HDP stands for High Definition Panchromatic). Typically for a microfilm, it's very slow and very high contrast, but extremely fine grained, which is a great benefit to the subminiature frame size. My first tests with stand development in R09 One Shot at 1+150 suggested an exposure index of 25, but I subsequently shot another roll rated 16 and using a developer dilution of 1+200, which provided better results. The images below were printed on Kentmere VC Select with a 00 Mulitgrade filter, the lowest contrast possible when printing (it is easier to reduce contrast further when scanning).

Kiev-30M with Agfa Copex HDP 13
Kiev-30M with Agfa Copex HDP 13
Detail from the above image showing fine grain structure and high resolution
The enlarged detail above demonstrates both the high resolution of the Agfa Copex HDP film and the resolving power of the lens in relation to the negative size. The sticker in top left is approximately 0.6mm high on the negative: the small lettering in the roundel on the sticker itself which is just legible is considerably less than a tenth of the size of the sticker. Evidently the film resolution exceeds that of the lens, but the extremely fine grain makes it ideal for the subminiature format, although the inherently high contrast means that it has very little latitude and may be more suitable for low contrast scenes and subjects, although both images above were taken on a bright sunny day, and the slow speed of the film is more appropriate for bright conditions.

As with many cameras from the former Soviet Union, the Kiev-30M is not without problems. The push-pull frame advance is not always reliable: occasionally the shutter does not cock, and so a frame is wasted in opening and closing the camera again; the catch on the underside of the body can be forced under the outer casing itself, the remedy to this is to bend this catch upwards to engage the outer casing more securely (Minolta cameras abandoned the push-pull advance as new models were introduced after the Minolta-16 II). I have also had odd vignetting on a number of frames, such as in the last shot above, which may be due to the shutter not opening fully. The cassettes are prone to light leaks, this happens more with perforated film. The limited aperture and shutter settings can fall a little short when using a fast film in bright light: 1/200th at f11 with a 400 ISO film in bright sunlight means accepting some overexposure (a yellow or neutral density filter would help in such circumstances). Conversely, a faster lens and a B setting would be useful for low-light situations. Set against these issues, the Kiev-30M is enjoyable to use for a number of reasons: its small size, when closed, easily the smallest camera I own; 16mm film is very cheap by the frame, a standard 100ft/30.5m) roll will fill many cassettes at 45cm each; and the simplicity of the camera itself.

Sources/further reading:
Kiev 16mm cameras on SovietCams.com
Kiev 16mm variations on Submin.com
Soviet-era subminiature camera list on Commie Cameras
Kiev-30M variations on Fotoua.com
Kiev-30M on USSRPhoto.com

Thursday, 15 November 2012

Ilford Ilfodata HS23 - continued

Graffiti, Ive Farm, Ilford Ilfodata HS23, shot at 25 EI, stand developed in Rodinal 1:150 for 1 hour
Following the exposure tests with the Ilfodata film in my last post, I also wanted to experiment with the dilution of the developer to see how this would affect contrast. With the first couple of rolls, I had stand developed the film in Rodinal diluted 1:100 for one hour. Taking a cue from the development of Tech Pan at 1:150, I shot another roll with the exposure index of 25, although this film I shot using my Kodak Retina IIa, and used the 'sunny 16 rule' as a guide for exposure, bracketing the shots, such as the one below where the two frames overlap.

Ive Farm Lane, Ilford Ilfodata HS23, shot at 25 EI, stand developed in Rodinal 1:150 for 1 hour
There's a stop difference between the two shots that overlapped on the film, I'm not sure which one is 'at' 25 EI, but both exposures provide a usable negative, although the shadow areas in the left hand image are beginning to lack detail. I developed this roll of film at a dilution of 1:150, and, although I did not shoot the same subjects with the same lighting conditions as the second test roll for an accurate comparison, this increased dilution may have reduced the contrast: certainly it is low enough to use for pictorial purposes.

Hackney Substation, Ilford Ilfodata HS23, shot at 25 EI, stand developed in Rodinal 1:200 for 1 hour.
I then shot another roll, with the same camera and the same exposure index, and developed this with a dilution of 1:200. In practical terms, this meant reducing the amount of developer to 5ml, and making this up with water to a litre (as opposed to 6ml to 900ml for a dilution of 1:150). The results at 1:200 showed up the limitations of further increasing the dilution. The development was visibly uneven in any large dense areas of the negatives, which meant the sky. In the shot of Hackney Substation above the cloudy sky obscures this, but in the picture of the flood relief channel below, the clear sky shows it well enough. Examining the end of the film exposed to the light when loading the camera proved uneven development to be the case: on any normally developed film, this will usually be a featureless black, but on this film there are lighter patches and streaks. This may be due to simply not having enough developer present, and it's certainly compounded by a lack of agitation while developing. A solution to this problem would be to increase agitation during development.

Lea Flood Relief Channel, Ilford Ilfodata HS23, shot at 25 EI, stand developed in Rodinal 1:200 for 1 hour.

Thursday, 1 November 2012

Ilford Ilfodata HS23

Ilford Ilfodata HS23 Type J500 document film

This tin of bulk film was a speculative buy from a well known auction site, specifically because I'd never heard of the film before. The only reference to the film I've found online is Viewfinder from June 1979, Ilford's in house magazine; indeed typing "Ilford Ilfodata HS23 Type J500" into Google returns just that one result. The underside of the tin has a label with the code "SZ 79 C" - possibly meaning it was manufactured in Swizterland in 1979 by Ciba (who bought out Ilford in 1969) although the label on the front of the tin does state "Made in England". The film is referred to on page 4, in an article headed 'Ilford in Microrecording'. It's worth quoting at length:

The ever-expanding range of ILFORD microrecording films ensures that the right product exists for the majority of applications. Where business documents, continuous stationery, cheques, statements or invoices are to be microfilmed, one of the ILFODATA High Speed films is particularly recommended.
  • HS 22 2.5/1000 polyester base dye resin backing.
  • HS 23 5/1000 acetate base dye resin backing.
  • HS 24 5/1000 acetate base carbon resin backing.
These products offer the combination of fine grain, high speed, high resolving power and - because of their panchromatic sensitivity - are recommended for accurate recording of multicoloured originals.

The article then goes on to mention Ilfodata HR31 specifically having an anti-halation underlayer, so I assume that the other films do not, although they have the backing as described. After loading a length of film into a canister to use, the colour of the backing was quite noticeable, being a deep, intense, almost ultramarine blue.

Vine Leaves, Ilfodata HS23

I shot two rolls of the film using my Olympus OM10. For the first roll I didn't accurately meter the shots I took: on the film canister I did note "last grapes 1000th at f5.6", but I may have meant 'eucalyptus' as that was the last series of shots on the roll. I stand developed the film with Rodinal diluted 1:100. The results were mixed: many frames were barely legible; those that were are clearly high contrast as one would expect from a document film. The film itself has a very clear base, with no markings in the film rebates and in the frames I scanned the grain is as good as indiscernible. In the image below the bright sky appears to have a 'glowing' effect, which may be a result of the absence of an anti-halation layer.

Eucalyptus, Ilfodata HS23

I shot a second roll less impulsively, exposing five frames successively with the camera's film speed dial set at 25, 50, 100, 200, and 400 in an attempt to work out an ISO setting for the film. Using Rodinal diluted 1:100, I stand-developed the film for 1 hour. The results on the contact sheet shown below indicate clearly that an exposure index of either 25 or 50 gives a usable result: the highlight areas are becoming blocked on the top row of 25 EI; some shots in the second row of 50 EI show very little detail in the deeper shadows. The Viewfinder quote about the film describes it as 'high speed' which, like the Kodak Technical Pan film in my previous post (which can be used at 200 EI), may refer to its use as a document film; using the film for pictorial purposes would indicate a much lower EI setting. Possible directions for further tests might be to use a lower exposure index and to dilute the film developer even further to lower the contrast.

Second test roll contact sheet of Ilfodata HS23
Tomatoes, Ilfodata HS23, exposed at 25 EI
Tomatoes, Ilfodata HS23, exposed 50 EI
Climbing Beans/Tomatoes/Clematis, Ilfodata HS 23, exposed 25 EI
Climbing Beans/Tomatoes/Clematis, Ilfodata HS 23, exposed 50 EI
Sources

Viewfinder, June 1979 (PDF file)