Thomas Aschenbach Posted March 3, 2013 Posted March 3, 2013 (edited) Because the demise of Kodak B&W Plus-X emulsion (31), shooting B&W film outside is challenging. 5222/7222 is the only Kodak B&W camera stock. Outside it is has an exposure index of 250. In the test described below the daylight was metered at 8,000 foot-candles. At 24fps this would require a f stop setting of around f64, or a very dark ND filter. Most lenses are sharpest at about 2 stops from open, this is impossible for 22 outside without using an ND15 or ND18 to get f5.6 or below. The contrast of direct sunlight & shadows is a struggle for any photographic medium. 5234 B&W duplicate negative is an intermediate film and is quite slow. 34 has a gamma less than one making it suitable to shoot and print. It is also panchromatic and available in acetate 16mm or 35mm. For the test it was rated at EI 6 for D96 processing. Test InformationFilm Information5222 Kodak B&W 35mm DOUBLE-X Negative $0.444 per footExposure Index: EI 200(Tungsten) 250(Daylight)5234 Kodak Panchromatic B&W Duplicate Negative $0.391 per footExposure Index: Rated EI 6 for test.LightingDirect mid day sunlight - Metered @ 8000 fcCamera SetupMitchell Super 35mm High Speed 4 perf 75mm prime lens5222: f11 ND9 @ 24fps 1/48sec5234: f5.6 @24fps 1/48secProcessingKodak D96 B&W Negative ProcessTransferSpirit 2K HD 1080P 23.98 1.78 extractionda vinci 2K+ DVNR2KSettings constant for both transfers. The results of the test were the following: The grain structure and response of 5234 is clearly finer. It is a very smooth image and out performs the 5222 outside. It is availible from Kodak in both 35mm and 16mm. We will do a test of 16mm soon, I am sure the diffrence will be even more dramatic. While this stock would be hard to shoot indoors, outside it is beautiful. If processed D97 is would have an exposure index of about 18 allowing for less direct sunlight. It is also cheaper 5222 $0.444 vs 5234 $0.391 per foot. Please right click and save as to see the test video. Youtube upload didnt show a good comparison. Edited March 3, 2013 by Thomas Aschenbach 1
Roy Cross Posted March 9, 2013 Posted March 9, 2013 (edited) Great test and great results, Thomas. I've not tried the 5234 before. In days of old, I'd shoot sound stock. Agfa had a product ST8. It was used in striking optical sound tracks. It was 4 or 5 cents a foot and I'd shoot miles of it. Lack of edge coding proved a bit of a problem when considering the negative conform but there were ways around that. But this print stock test is quite wonderful. The 5234 is a low contrast stock that was designed to build contrast from the original neg during contact printing if memory serves me. Stacking on the ND is a bit of a nuisance but in the end I think I prefer the grain and contrast of the 5222. Here is a link to a short film I made a few years back with 5222. I shot it on a heavy overcast day. Konvas 7M. 24 and/or 30 fps. f:11 or 16. No ND. For some shots I popped the lens out of its seat a little and created a poor man's macro, which is why I was able to get so close on some shots. Also, I was turning the camera on and off during shots to create a flicker. There is one interior shot that was probably shot at around f: 2.8 but I can't confirm. I have about 5000 feet of 5222 and I think I will try my hand at some anamorphic cinema before everything vanishes. thanks for sharing your results, Roy Edited March 9, 2013 by Roy Cross
Thomas Aschenbach Posted March 10, 2013 Author Posted March 10, 2013 (edited) Roy,Thanks for your comments. Your film looks great, the overcast day really made it have a wide range of details from shadows to highlights. I actually also shot this test on ST8. It also works well and is about the same exposure index maybe a little faster and a lot more contrast. The problems I have with it is in its stability in camera. The stock is so thin that the pressure plate on some cameras does not make contact and it can have a movement/flutter issues. Depending on what type of camera you use this may or may not be a problem. Also everyone should be very careful when using a polyester stock in camera. It is incredibly strong and if jammed can easily damage a camera.I wanted to show the 34 comparison because I miss the clean look of Plus-X(31). 5234 is a duplicate negative. B&W is different than the color photochemical workflow stocks. In color, interpositve and duplicate negative are the same stock. (42 emulsion orange base). IP/DN 42 has a unity contrast. The gamma is ~1. When it goes Camera Neg -> IP -> DN, the dupe neg has the same contrast as the camera original. With B&W IP and DN are different stocks. Fine grain masters (66 emulsion) are the interpositves. They are low contrast clear base positives. While a lower contrast than B&W print stock (02 emulsion), FG masters adds some contrast relative to the camera negative image. So in B&W, camera neg ->FGM->DN, the dupe neg(34) should have the same contrast curve as the original camera neg. Because the FGM(66) adds contrast, the DN(34) reduces it back down. This is why 34 DN's gamma is lower than 1 and it can work in camera and still be printed/scanned with full tone range. Edited March 10, 2013 by Thomas Aschenbach
Roy Cross Posted March 10, 2013 Posted March 10, 2013 Hi Thomas, I stand enlightened. Thanks for this explanation. I had a look at your company's site, impressive. Are you still stamping out optical sound tracks for film releasing on 35mm? You have quite a range of services and I like your ingenuity around maintaining your equipment. I am envious of the filmmakers in and around Maryland. Here in Montreal we have but 1/2 a lab. They process colour negative only. Down the highway in Toronto there is a custom lab: Niagara Custom Lab. They do just about everything on the emulsion side of production. I am head of a Film Production Program at Concordia University and we recently mothballed our Steenbecks. Until this year students cut on 16 and edited sound on Protools and then back to magnetic film for double system projection. It became nearly impossible to find 16mm workprinting which forced us to evolve to a digital post workflow (the 16mm mag stock was challenging to find as well). Anyway, I am happy to see you running a great business model. I'm somewhat reluctant to ship exposed but unprocessed film across an international boarder but I'd like to take advantage of your business in some way. Thanks for your post and I'm curious to hear about those who are striking release prints with optical tracks. Sincerely, Roy Cross
Site Sponsor Robert Houllahan Posted March 11, 2013 Site Sponsor Posted March 11, 2013 I would also take a look at the orwo UN54 stock as a xx31 replacement it is very nice and similar to 31 in many ways, I have had some issues with orwo's perorations in my Aaton LTR but they say they have adjusted their manufacturing. I had no problem running Orwo in my Arri 2C but I would like to do a test in a Panaflex or Mitchell to see how it transports. -Rob-
Webster Colcord Posted September 24, 2018 Posted September 24, 2018 (edited) I was just gifted 2000ft. of 5234 (from a Freezer) and I'm thinking about shooting with it... wonderful that I was able to find a discussion about it here! Edited September 24, 2018 by Webster C
Michael Carter Posted September 25, 2018 Posted September 25, 2018 RO9 One Shot seemed to develop at low Asa rates, not at box speed.
Michael Carter Posted September 28, 2018 Posted September 28, 2018 Test. 7222 in bright sun 3200 FC 24fps BolexRX4 shutter on 1 f22, shutter open f22, f16, f11, f8. All negative images show detail in lights and darks, go from lighter to darker negatives, but I have printed such easily. Development was by hand on spirals. I use Lomo tanks. RO9 at 1:300 for 3 1/2 hours. 72 degrees. 30 agitations to start, then one an hour. Leader is clear without fog and the same from edge to edge. No filters are needed to use 7222 on a bright sunny day. Any will print. All are good.
Michael Carter Posted September 29, 2018 Posted September 29, 2018 If I developed a little less, the f8 shot would come to life and be easier to print, it would be a better Asa 6.
Webster Colcord Posted October 2, 2018 Posted October 2, 2018 As I understand it, because it's a print stock 5234 has no remjet backing. So if I'm shooting it on a daylight spool, like in an Eyemo, will the lack of remjet allow light to pass thru the film layers? Would I have to load in complete darkness?
Premium Member David Mullen ASC Posted October 3, 2018 Premium Member Posted October 3, 2018 B&W camera stocks don’t use remjet (carbon backing) — I think they use a grey dye undercoat. Probably remjet helps reduce exposure leaks when loading daylight spools but b&w stocks were sold in daylight spools. You probably should load in the shade at least... the lack of anti-halation mainly means you’ll have some halation issues, maybe that will be pretty, or maybe annoying. 1
Premium Member Simon Wyss Posted October 3, 2018 Premium Member Posted October 3, 2018 For black-and-white originating and duplicating stocks grey bases are used, dyed in the mass. The measure is old, coloured glass was already in use in the 19th century with photographic plates. X234 can be loaded like a camera film. 1
Webster Colcord Posted October 3, 2018 Posted October 3, 2018 Thanks guys! I will be sure to post the results here (if they look good!)
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