grey card question

[atlcruiser]

Hi all,
By luck of the draw I have a bunch of color neg film that is really driving me crazy! The scanning is the issue and getting the correct color in LR.

I have grey cards and know how to use them..my question is this:

Most of what I am shooting is 6x7 so I get 10 exposures per roll. if I use 1 frame to set the grey card then I have only 9. Is there any reason I cant use my M8 to grab a digital shot of the grey card in the same light as I will be shooting the film then use it to set my balance in LR?

thanks

 

[chrismoret]

I think it's not going to work. The M8 sensor is reacting totally different to light then a 120roll negative film.

 

[sevo]

If it is a film issue, it is no good. If you need to counterbalance some odd-coloured FL lighting, such a replacement metering can at least get you close enough that you can do the rest by trial and error.

Beware: If the white balancing results in correction in excess of +/- 30CC you'll need to filter at the camera (which you effectively did in digital by white balancing). If the exposure of the three channels is too far apart, you can't fix it in the postprocessing, as some channel's shadows or highlights will be missing or severely damaged.

 

[Jamie123]

Taking a digital reference shot won't work. However, you don't have to take a reference shot for every single roll. Take one shot of a grey card under the midday sun on a sunny day and use that white balance as a reference for all your other shots. This will assure that when you capture warm evening light it will look warm and if you capture cool light on a cloudy day it will look cool. If you use a gray card for every lighting all you'll do is match them in color balance so they will all look neutral.

 

[atlcruiser]

Taking a digital reference shot won't work. However, you don't have to take a reference shot for every single roll. Take one shot of a grey card under the midday sun on a sunny day and use that white balance as a reference for all your other shots. This will assure that when you capture warm evening light it will look warm and if you capture cool light on a cloudy day it will look cool. If you use a gray card for every lighting all you'll do is match them in color balance so they will all look neutral.

There you go! Great idea

thanks

 

[atlcruiser]

If it is a film issue, it is no good. If you need to counterbalance some odd-coloured FL lighting, such a replacement metering can at least get you close enough that you can do the rest by trial and error.

Beware: If the white balancing results in correction in excess of +/- 30CC you'll need to filter at the camera (which you effectively did in digital by white balancing). If the exposure of the three channels is too far apart, you can't fix it in the postprocessing, as some channel's shadows or highlights will be missing or severely damaged.

Can you explain a bit more about the channels beign too far apart? I thik I ran into this and was stumped.


My plan B is to shoot chromes/BW only 🙂