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simulating B/W filters?

Graham Smith
I would like to simulate the effects of the range of filters used with B/W film e.g. No 11, x4 light yellow green, No25 x6 Red etc.

Does anyone know of a source of the settings required to do this in C1, or indeed a source of styles for this.

Thanks,
Graham
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Comments

7 comments

Date Votes
  • Graham Smith
    To answer my own question, I have now found some styles that say the do what I am asking, but have no way of kowing how accurate they are.

    The link is here, if anyone is interested:

    http://www.gaborbarath.com/capture-one- ... r-samples/

    Cheers,
    Graham
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  • cdc
    Isn't this simply a matter of going to the color tab, selecting Black & White, and then adjusting the color sliders to taste or selecting one of the presets already installed in Capture One?
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  • Graham Smith
    cdc wrote:
    Isn't this simply a matter of going to the color tab, selecting Black & White, and then adjusting the color sliders to taste or selecting one of the presets already installed in Capture One?


    Thanks, but the question was about simulating specific filters. How do I know where the sliders need to be set, or what the presets represent as they don't have names that obviously relate to known filters.

    Cheers,
    Graham
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  • cdc
    My suggestion was based on the idea that experimenting with the sliders yourself, while you may not be emulating a exact filter, may land you with similar/better results than a preset since you are making adjustments specifically for the picture you're working on.

    To emulate a red filer for example you could start with moving the red, yellow, & magenta sliders to positive values, green, cyan, & blue to negative values.
    Blue filter: Cyan, Blue, & Magenta go positive, red, yellow, & green go negative.
    And so on then fine tune to taste.

    That said far more presets are made and sold for Adobe products so if you are unable to locate any made for Capture One what you may be able to do is find some for say the photoshop B&W adjustment layer tool and manually copy the settings over to Capture One B&W tool.
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  • Graham Smith
    cdc wrote:
    My suggestion was based on the idea that experimenting with the sliders yourself, while you may not be emulating a exact filter, may land you with similar/better results than a preset since you are making adjustments specifically for the picture you're working on.


    But this isn't what I am trying to do, I know how to manipulate the sliders to create the BW effects I want, or to "roughly" emulate specific filters.

    I was just interested to see what the specific filters I used from my B/W film days would look like in comparison with what I am doing.

    As I said in the previous post, I have found, and bought, some presets that do this, but the don't know how they were created and the seller hasn't responded to my email.

    But it never occurred to me that sliders on Photoshop would exactly match those on C1, so I will have a look at what is available for photoshop.

    Thanks for trying to help, but its the exact replication of these recognised filters that I want to emulate.

    Cheers,
    Graham
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  • cdc
    myotis wrote:
    cdc wrote:

    But it never occurred to me that sliders on Photoshop would exactly match those on C1, so I will have a look at what is available for photoshop.


    They don't always correspond exactly when matching settings between programs, sometimes a little bit of mathematics is involved to get the correct figures. For example Lightroom uses 0%-100% values for its curve input and output settings where photoshop and CO1 use RGB 0-255 values. So a curve input or output value of 50% in lightroom translates to 127.5 in programs using the 0-255 scale. 25% = 63.75, 75% = 191.25, etc.

    It can be tedious but I've copied film emulation curves from lightroom in this manor and use them pretty regularly in photoshop and Capture One.
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  • Graham Smith
    cdc wrote:

    They don't always correspond exactly when matching settings between programs, sometimes a little bit of mathematics is involved to get the correct figures. For example Lightroom uses 0%-100% values for its curve input and output settings where photoshop and CO1 use RGB 0-255 values. So a curve input or output value of 50% in lightroom translates to 127.5 in programs using the 0-255 scale. 25% = 63.75, 75% = 191.25, etc.


    Thanks, that is useful, I will see if I can make that work.

    Cheers,
    Graham
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