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Thread: monochrom color filters

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    monochrom color filters

    anyone using a yellow or orange filter 24/7 on their monochrom?

    even indoors?

    is there much light loss with the orange filter? 1/2 stop?

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    Re: monochrom color filters

    Better filters usually have the exposure compensation printed on them.

    With an orange filter, generally, you'd need to add 1 1/3 stops (2.5x). Even a yellow dings you a full stop.

    FWIW, the Using Filters in B&W Photography article I wrote has a bunch of info on filters.
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    Re: monochrom color filters

    Nice article!

    thank you.

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    Re: monochrom color filters

    I leave yellow filter on the lenses most of the time. I believe yellow works well for both landscape and also skin, and can help to prevent highlights.
    I also have one orange and one light red filter but the yellow seems a good "compromise" to me. I dont want to screw filters on/off all the time.

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    Re: monochrom color filters

    The best write up of filters for B&W is in Ansel Adams book The Negative

    He describes very exact their effect.

    Worked when I had M8 and works on any camera

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    Re: monochrom color filters

    Early on with my MM I shot an Xrite color checker under controlled lighting with no filters and then with B+W 022 (medium yellow) and 040 (yellow orange). I did the same thing with the same lens and Kodak Tmax 100 (I know you hate this film}.

    I scanned the film on my Imacon. In LR I adjusted tone, contrast and curve of the MM files (using the gray patches) to approximate the scanned film.

    Results: in terms of how it translates color to B&W the MM is quite similar to the Kodak film - differences are minor and given my fairly casual methodology probably don't have much meaning.

    The MM reacts to filtration very much like film. Side by side landscapes with blue skies, foliage and puffy clouds confirmed this.

    This test also let me confirm that the Silver Effex Pro software does a decent job of approximating Tmax.

    With the 022 filter the MM's metering is roughly accurate; with the 040 there is an underexposure bias - a +1/3 setting (rather than the usual -1/3) seems about right.
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    Re: monochrom color filters

    anyone using color filters for b&w for indoor existing light portraits also?

    i dont shoot landscapes.
    if i am going to pick up one filter for portraits which would be advisable:

    yellow, yellow orange, or orange?

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    Re: monochrom color filters

    Quote Originally Posted by Anders_HK View Post
    The best write up of filters for B&W is in Ansel Adams book The Negative

    He describes very exact their effect.

    Worked when I had M8 and works on any camera
    Is that Adams book available for iPad?

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    Re: monochrom color filters

    goomz, you could probably just take a color indoor portrait image, and try out the different color filter presets in lightroom to get an idea which one you will prefer. I suspect the results should be similar. My guess is yellow.


    Quote Originally Posted by gooomz View Post
    if i am going to pick up one filter for portraits which would be advisable:

    yellow, yellow orange, or orange?
    David Young
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    Re: monochrom color filters

    The Negative isn't listed in a Kindle version, but there's a link to ask that it be made available. Given the power of GetDPI, maybe everyone should ask.

    The Negative (Ansel Adams Photography,Book 2): Ansel Adams,Robert Baker: 9780821221860: Amazon.com: Books
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    Re: monochrom color filters

    I think it will be swell if Leica come up with a Wratten 90 attachment for the view finder.

    (Although, personally, I would like to see a true liveview monochrome cam)

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    Re: monochrom color filters

    http://www.schneiderkreuznach.com/pd...r_handbook.pdf

    I've posted this before, it is a good reference for filters.
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    Re: monochrom color filters

    I use either orange (now getting to be my favorite) or yellow. Did try red today and sometimes I liked it and sometimes not, orange is my filter of choice. I think the orange losses about 1 stop. The red losses at least two more over the orange.

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    Re: monochrom color filters

    Quote Originally Posted by Vivek View Post
    Is that Adams book available for iPad?
    You will likely, same as I did, very considerably flip back and fourth in the pages when reading and to compare. Thus the printed version will yield better value and a nice addition for your shelf.

    The Negative is one of best books I have read on photographic process.

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    Re: monochrom color filters

    I have all his books for ~15 years now.

    Reading and understanding is highly recommended.

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    Re: monochrom color filters

    Here is a data sheet from Leica comparing the spectral response of the MM to Tmax 400. It confirms my experience but at a greater level of scientific accuracy:

    spectral response is very similar to Tmax. Flesh tones very close. On the MM
    some saturated reds and oranges are a little darker. This means that the experience of working with color filters is very similar to film. A very sharp IR cutoff, again consistant with my experience.



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    Re: monochrom color filters

    One real problem while using color filters on the MM, especially while using fast lenses (typically the ones used for portraits) is the focus shift. This will vary depending on the color of the filter as well as the thickness of the filter used.

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    Re: monochrom color filters

    is the focus shift on the MM a problem at f5.6 or are is the focus shift only a problem at f2 or 1.4?

    would a wide angle like a 24mm exhibit any noticeable focus shift on the MM with color filter or is it only a real problem with 50mm and above?

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    Re: monochrom color filters

    Quote Originally Posted by gooomz View Post
    is the focus shift on the MM a problem at f5.6 or are is the focus shift only a problem at f2 or 1.4?

    would a wide angle like a 24mm exhibit any noticeable focus shift on the MM with color filter or is it only a real problem with 50mm and above?
    Depends on the lens and the thickness of the filter used for a given lighting situation. Experiment. It is a digicam, after all.

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    Re: monochrom color filters

    With front mounted filters, focus shift, or more correctly, object distance shift, is not an issue. Filters mounted behind a lens can cause problems.

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    Re: monochrom color filters

    FWIW I have found the filtration factors printed on B&W filters do NOT correspond to the factors which give me the best results.

    I did exhaustive tests using several different films (D400, TriX, D100) in 120 (Mamiya 7) and 35mm (Leica MP) and found the filter factors provided resulted in over exposure with yellow and orange filters. Normalising neutral coloured shadows, I found I only needed to add 1/3 stop for a yellow and 1 & 1/3 for an orange, rather than 1 and 2 stops respecitvely. Up to this point I was gettting irked by exposure jumping up and down on each roll when using my Mamiya 7 (which does not have TTL metering).

    On the leica MP/6 I use TTL metering and forget about it with orange and yellow filters. For red and deep red TTL is unreliable and will underexpose.

    I would bet a regular yellow will require no more than 1/2 stop more light on a Leica MM. I have one, but have not tested yet due to house move.

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    focus shift direction

    For red, compensate by focusing in front of the target.

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    Re: monochrom color filters

    turtle, does what your saying about filter factors apply only to films or would this be true for digital capture also?

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