Jump to content
Sundar Raghavan

Exposing Sound Negative In Camera??

Recommended Posts

NOTE- I Am a beginner , if my question is silly please do ignore and help me with the answer .Thank you.

 

Is it Possible to expose a sound negative in film camera ? does it form any image in it ??

My another question is whether the sound negative contains emulsion fully coated or it contains emulsion only on the sound-track portion??

 

i guess it is fully coated on emulsion side , if so can the sound negative form any image on it if exposed through camera ?

 

Thank You,

Sundar.

Share this post


Link to post
Share on other sites

Is it Possible to expose a sound negative in film camera ?

 

Sundar.

 

 

 

Sundar,

 

Yes it's possible, but the technology is old. Go to this Yahoo Group about Auricon cameras, there's a group of die hards still doing it. You'll find manuals about optical recording with the Auricon camera and pictures of cameras and amplifiers. You may have to join the Group to access the files. Nice bunch of guys! How to use your Auricon 16mm Sound on film Recording Equipment

 

Good luck!

 

Charlie

  • Upvote 1

Share this post


Link to post
Share on other sites

I have a feeling that the OP might be asking about using s/neg film for pictorial purposes.

 

Sound negative films are coated across the whole film and so will form images if used in a picture camera (as opposed to a sound "camera", which is what they're called).

 

I know a few people who've used EASTMAN Panchromatic Sound Recording Film 3374/7374 for this purpose. It yields a very (and I mean very) high-contrast image, but with clever development you could probably get very interesting results. There used to be some on Vimeo but I can't find it now.

Share this post


Link to post
Share on other sites

Yes, jock is right, the Kodak 3374 makes beautiful images. It is high contrast and extremely fine grained. It is a panchromatic stock (ie sensitive to the entire colour spectrum of light) like normal camera negative film (so you can't use a safe light when processing it). Rate it as 40 asa (quite fast for a sound neg).

Kodak also make another sound neg - 3378. This is a slower speed stock (I've never shot it so I don't have an asa for you, but quite a bit slower). Unlike the 3374, its not panchromatic - just blue sensitive.

Agfa also still make a very nice sound negative called ST8. You can shoot it at 25 asa I believe and it is a blue sensitive stock.

ORWO (the german film company) also make a panchro and a blue sound neg if I remember correctly.

These all work fine as camera stocks in 16mm. I know many people for whom sound neg is their favourite camera stock. Note that it is usually pollyester base, rather than acetate.

In 35mm, however, I am not sure whether there isn't frame number information printed in the picture area. I say this because I saw a 35mm film in the Rotterdam film festival a couple of weeks ago that had a sound neg look and there were frame numbers etc printed in the middle of the picture area. In point of fact, I haven't shot any sound neg in 35mm. Others on this forum will definitely be able to inform us whether 35mm sound neg normally has this 'edge number' information printed in the picture area in this way.

  • Upvote 1

Share this post


Link to post
Share on other sites

As far as the Auricon cameras they actually record sound on the regular stock, they were intended for TV news in the day. But I also imagine that the inquiry is about using the sound stock to record pictures.

 

I also wonder where the "edge" print is on 35mm sound negative these days, the digital track info is on the edges, and between the perfs - and the anlog track is still on the edge, - the picture area may be the only "safe" place to put the makers information.

Share this post


Link to post
Share on other sites

It was Richard who put me on to 3374 in the first place!

 

Edgecoding is a valid point though. Kodak 16mm s/neg film still has it outboard of the perfs and so not in anybody's way. I know (for 3374) it reads "EASTMAN 374 13 12 11 10 09" with the two-digit strings being the year it was made - so 2009 in my example - but I don't recall if they included footage numbers. Can't really see a need for it, actually, considering that films are cut to the KEYKODE on the picture stock and then the soundtrack is cut on tape before a one-pass strike of the s/neg.

 

The last 35mm s/neg I handled was one struck in 1986 with the usual "EASTMAN S'AFETY FILM" down the side, but it definitely has no footage numbers.

 

It is a valid point about where it's meant to go on digital-track prints though - really the only areas left are the picture area and the area between the non-track-side perfs.

 

Certainly the solution to that problem on 35mm release prints was to stop edge-coding for a time, but then when SDDS switched over to cyan printing (so the soundtrack is formed only from cyan dye rather than silver) the edge coding moved back into the usual place but in magenta so that the red LED readers could ignore it.

Share this post


Link to post
Share on other sites

 

In 35mm, however, I am not sure whether there isn't frame number information printed in the picture area. I say this because I saw a 35mm film in the Rotterdam film festival a couple of weeks ago that had a sound neg look and there were frame numbers etc printed in the middle of the picture area. In point of fact, I haven't shot any sound neg in 35mm. Others on this forum will definitely be able to inform us whether 35mm sound neg normally has this 'edge number' information printed in the picture area in this way.

 

I think I have seen the film you refer to, or a similar one at least, and it's not edge number information but just the number of the stock printed in the centre. Popular opinion being that it was done to stop you filming on it. It is of course a Kodak thing.

 

love

 

Freya

Share this post


Link to post
Share on other sites

Thank you all for sharing your knowledge.. but the thing is film stocks mentioned above are 16mm .. Do anyone have idea about doing the same thing in 35mm Sound Negative film with latest 35mm film camera or someone had tried it earlier in 35mm?? wats the result?

Thanks,

Sundar.

Email me

Share this post


Link to post
Share on other sites

You might want to try contacting John Price: http://www.filmdiary.org/

 

He makes experimental films and is a master at using non-camera stocks, hand processing and optical printing. He's got quite a bit of 35mm work (though much of it originates on 16mm or Super 8). Many of his films are on his website available to watch. He lists what stocks he used for each film at each stage of the film.

 

Provided you have enough light, you can get an image from any lab stock used in camera. However don't expect anything like a 'normal' look.

Share this post


Link to post
Share on other sites

One customer did some shooting recently on ST8 (Agfa sound negative stock) in 35mm. It does not have any manufacturer printing in the picture area. The results are..interesting and very graphical. It was processed in B&W negative developer to bring the contrast down. Don't expect a normal image but there are still grey tones, the latitude is minimal and the base is grey-blueish so no pure whites.

 

On the other hand, several award-winning films have been printed from color negative onto ST8 and this gives very interesting results. One of them we did was a blow-up from S16 color to B&W ST8 (Le nain rouge /The red dwarf). It won the European Cinematography Award and was even released in the US (small scale release).

Share this post


Link to post
Share on other sites

You might want to try contacting John Price: http://www.filmdiary.org/

 

He makes experimental films

 

I really like the look of this guys film but after 20-odd minutes of searching around online looking for somewhere hosting files I can download I give up.

 

Seems such a shame that people don't utilise the ability to have thousands of people view their work, instead of only dozens at screenings.

Share this post


Link to post
Share on other sites

I really like the look of this guys film but after 20-odd minutes of searching around online looking for somewhere hosting files I can download I give up.

 

What do you mean? Nearly all of his films are available to view as a Quicktime file on his website. Which after loading you can click 'save as' if you really need a private copy.

 

How much more accessible do you need it to be? Why don't you e-mail him and say you like his work and would like to buy a DVD instead of whining that you can't steal his work instantly on the Pirate Bay.

Share this post


Link to post
Share on other sites

NOTE- I Am a beginner , if my question is silly please do ignore and help me with the answer .Thank you.

 

Is it Possible to expose a sound negative in film camera ? does it form any image in it ??

My another question is whether the sound negative contains emulsion fully coated or it contains emulsion only on the sound-track portion??

 

i guess it is fully coated on emulsion side , if so can the sound negative form any image on it if exposed through camera ?

 

Thank You,

Sundar.

Share this post


Link to post
Share on other sites

I shot some 3378 last summer and have a good bit of stock. The traditional result, as has been pointed out already, is an extremely high contrast B&W image. This is with D-97 B&W positive processing. You can get it processed in negative chemicals and get much closer to a normal contrast range. I can't remember exactly how I rated the film for this, but I can check back through my tests.

 

One thing to consider is that 3378 is thinner than normal camera stocks. You can feel the difference when handling it. Some camera models might have trouble keeping it flat and stable, depending on how the pressure plate system works. I had no problems with it on a Scoopic.

 

If anyone's still interested in soundtrack as a camera stock, I can shoot some and post the results online.

Share this post


Link to post
Share on other sites

I shot some 3378 last summer and have a good bit of stock. The traditional result, as has been pointed out already, is an extremely high contrast B&W image. This is with D-97 B&W positive processing. You can get it processed in negative chemicals and get much closer to a normal contrast range. I can't remember exactly how I rated the film for this, but I can check back through my tests.

 

One thing to consider is that 3378 is thinner than normal camera stocks. You can feel the difference when handling it. Some camera models might have trouble keeping it flat and stable, depending on how the pressure plate system works. I had no problems with it on a Scoopic.

 

If anyone's still interested in soundtrack as a camera stock, I can shoot some and post the results online.

Would you mind posting some samples of 3378? Stills or video. I'm looking for some professionally scanned footage of hi con. It's hard to find proper samples online. I've hand processed and shot the film with a digital camera before, but can't recall seeing very many high quality scans.

 

I'm looking to shoot some 3378 on an aaton xtr. Do you anticipate I would have any trouble with it jamming the camera or any other problems? My only experience with the film previously has been with a bolex.

Edited by Charles Cadkin

Share this post


Link to post
Share on other sites

I used to own an Auricon Pro 600 16mm optical sound on film camera and shot tri x in it.

I used to shoot high contrast copy film 7363 perforated to regular 8mm. That should be similar to sound track film.

Here are links to my videos about them

https://m.youtube.com/watch?v=yEF11bU3Og4 7363 8mm

https://m.youtube.com/watch?v=6AwC5V1ySkY Auricon

Perfect, that's just what I was looking for. Thank you!

Share this post


Link to post
Share on other sites

We did tests on it almost 20 years ago. B/W sound stock negative. It has no rem-jet backing, it was very contrasty, and the effective ISO was around 25! But it worked.

Share this post


Link to post
Share on other sites

Any idea where to get 400' lengths of 3378 or similar hi con film? Kodak sells in a minimum of 2000' and I no longer have the resources to spool down that much film.

Share this post


Link to post
Share on other sites

I'll try to dig up my samples. Rating at 25 is what I did. 3378 is processed in positive chemistry for soundtracks, but you can request it to be run in negative chemistry which would reduce the contrast by a noticeable amount, but you'd have to rate it even lower, maybe 12 ASA.

 

Charles, you can email me at info@colorlab.com and I can get you a price for 400' of stock.

Share this post


Link to post
Share on other sites

Another round of tests was given in order to develop 3378 as negative with lower contrast. Stand development was used. RO9 was the developer. This film is very sensitive to it. Development had to be adjusted. Time was shortened. Temperature was lowered. Agitation was deminished. Dilution was increased. Filters would help, too, but we're not used.

https://www.facebook.com/photo.php?fbid=1209330349207752&set=oa.2110096492568745&type=3&theater&ifg=1

That stained glass is a good indicator of correct exposure. I determined Asa to be one click lower than 25.

post-71635-0-07072000-1539344025_thumb.jpeg

Edited by Michael Carter

Share this post


Link to post
Share on other sites

BTW, I hand process in spiral tanks. The use of one ml of a premixed liquid developer in 400 ml of filtered water is very appealing to me.

Edited by Michael Carter

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Media Blackout - Custom Cables and AKS



    Visual Products



    Broadcast Solutions Inc



    Paralinx LLC



    Serious Gear



    CineLab



    Ritter Battery



    Gamma Ray Digital Inc



    New Pro Video - New and Used Equipment



    Tai Audio



    Rig Wheels Passport



    Abel Cine



    Glidecam



    Wooden Camera



    Metropolis Post


×
×
  • Create New...