Tungsten film and usage when not in complete dark

[gettons]

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Hello there,

I have been recently shooting film and please accept my apologies if this is a silly question.

As far as I understand tungsten film should be used when not in sunlight, but when the main source of light is in fact tungsten. I also understand that if one wants to shoot tungsten film during daylight, they may use something along the lines of the 85B filter which converts the type of light (kelvin) from warm to cool (which matches the tungsten). If you do not do that your images would have a blueish cast.

Now, since the tungsten film I am shooting is rated from 500 to 800 isos (cinestill 800t / kodak vision 3 500T), my question is: say I do NOT want to use a tripod for long exposure AND I do not want to use a 85B filter, what's the minimum amount of daylight in addition to tungsten lights that I can have in order not to have the blue cast mentione above?

I mean cinestill 800t and kodak vision 3 500T surely work fine when there is no sunlight at all, however if you want to shoot without a tripod and the only source of light is tungsten you might have problems. I would think it's safe to use this type of film even when there is a little sunlight, maybe just before sunset. Or not?

 

 

Thanks in advance

 

Edited November 29, 2020 by gettons

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The characteristics of 800T make it ideal for both daylight and artificial light on the same roll so long as in daylight you give it one or two stops more exposure and artificial light rate it at box speed. I use it at 400 ISO and a filter isn't needed, it looks like a normal colour film.

[gettons]

Thank you.

Anyone can comment on Kodak vision 3 500t?

 

Edited November 30, 2020 by gettons

[250swb]

Never used it.

[downstairs]

Stop all the way down, open the shutter and go away for lunch. Tungsten film is magic in daylight interiors with an orange filter and the longer the exposure, the better it looks. No need to calculate the reciprocity factor. Just let the film cook slowly at f45/64. 10 minutes, 40 minutes, 90minutes - each exposure will be good but different. I have used 8x10 and 5x7 sheet film Tungsten for decades. I was shooting Interiors and window-light still life mostly at f64. The film appears to be auto-masking.  My wife learned to do perfectly balanced institutional interiors with a roll film (6x9) Corfield closed down to f32 with one to three minute  exposures. People could walk across the rooms with no damage.  

[giannis]

On 11/29/2020 at 12:48 PM, gettons said:

what's the minimum amount of daylight in addition to tungsten lights that I can have in order not to have the blue cast mentione above?

 

There's no rule. When you have different balanced lightsources, you have to sacrifice one for the other, you can't magically balance for both in-camera.

Even in pure daylight, tungsten film doesn't look as blue as you'd imagine. It's a slight blue cast that's entirely correctable in post. If you overexpose, the cast is further reduced.

[1Sagar]

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On 11/29/2020 at 9:48 PM, gettons said:

Thank you.

Anyone can comment on Kodak vision 3 500t?

 

Shoot at 1 stop over (250ISO) 

See attached 250iso no filters processed in fresh cinestill c41 kit 

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6 hours ago, 1Sagar said:

Shoot at 1 stop over (250ISO) 

See attached 250iso no filters processed in fresh cinestill c41 kit 

 

Photoshop?