a.noctilux Posted February 3, 2020 Share #21 Posted February 3, 2020 Advertisement (gone after registration) I've had hundred of hours studying color theories. Theory is one thing, real life IS another which can be a bit different in practical results on images... In real life, those pure colors (red, blue, green, cyan, magenta, etc.) are encountered only in theory. Real life has a mix of those colors ( subject and lighting ) which must be included in the "theory colors" with choosen colored filters in each case, so always use yellow (or whatever colored ) filter is not the best way to gain contrast. 1 2 Link to post Share on other sites More sharing options...
Advertisement Posted February 3, 2020 Posted February 3, 2020 Hi a.noctilux, Take a look here M10 Monochrom - would you always use a yellow filter for better tonality or not?. I'm sure you'll find what you were looking for!
Chuck Albertson Posted February 3, 2020 Share #22 Posted February 3, 2020 Take some shots of an American flag (or a Union Jack), with an without a yellow filter, and see which one produces the tonal separation you like. That's about the extent of my empirical testing. Link to post Share on other sites More sharing options...
Chaemono Posted February 3, 2020 Author Share #23 Posted February 3, 2020 Trivia question: Is the distance in luminance between a blue and a green peanut M&M or a blue and an orange peanut M&M shorter with or without a yellow filter, meaning can the tones of blue, green, and orange peanut M&Ms be more easily distinguished as being separate on a B&W sensor if a yellow filter is used or not? I have the M&M B&W pictures but I'll keep you a bit in suspense. 😂 Link to post Share on other sites More sharing options...
Jeff S Posted February 3, 2020 Share #24 Posted February 3, 2020 47 minutes ago, Chaemono said: Trivia question: Is the distance in luminance between a blue and a green peanut M&M or a blue and an orange peanut M&M shorter with or without a yellow filter, meaning can the tones of blue, green, and orange peanut M&Ms be more easily distinguished as being separate on a B&W sensor if a yellow filter is used or not? I have the M&M B&W pictures but I'll keep you a bit in suspense. 😂 Under what lighting conditions? Jeff Link to post Share on other sites More sharing options...
Chaemono Posted February 3, 2020 Author Share #25 Posted February 3, 2020 (edited) Of course, a.noctilux is right in #21 but just for the heck of it. Another trivia question: of what color are the four encircled peanut M&Ms shown in this crop from a picture taken with a B&W sensor and no filter on the lens (hint, it's three different colors)? Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! And below the crop with the yellow filter. In the left circle, it's blue and green peanut M&Ms and in the right it's blue and orange. And while the distance in luminance between green and orange is so short that irrespective of the yellow filter the tones can't be separated on a B&W sensor, the yellow filter does separate the tones between blue and orange much better and in general creates a larger distance in luminance between brighter and darker colors. It does't mean that it's correct to use always a yellow filter nor does it mean that the pictures with a yellow filter will look nicer. They will, though, look more contrasty and less silky. Edited February 3, 2020 by Chaemono 1 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! And below the crop with the yellow filter. In the left circle, it's blue and green peanut M&Ms and in the right it's blue and orange. And while the distance in luminance between green and orange is so short that irrespective of the yellow filter the tones can't be separated on a B&W sensor, the yellow filter does separate the tones between blue and orange much better and in general creates a larger distance in luminance between brighter and darker colors. It does't mean that it's correct to use always a yellow filter nor does it mean that the pictures with a yellow filter will look nicer. They will, though, look more contrasty and less silky. ' data-webShareUrl='https://www.l-camera-forum.com/topic/305720-m10-monochrom-would-you-always-use-a-yellow-filter-for-better-tonality-or-not/?do=findComment&comment=3905506'>More sharing options...
Chaemono Posted February 3, 2020 Author Share #26 Posted February 3, 2020 Gerade eben schrieb Jeff S: Under what lighting conditions? Jeff My kitchen lighting conditions. And here a link to less compressed JPEGs: https://www.smugmug.com/gallery/n-7XdTDJ/ And the full resolution ones with LUF compression (much better now if viewed in Lightbox) No yellow filter Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! With yellow filter Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! With yellow filter ' data-webShareUrl='https://www.l-camera-forum.com/topic/305720-m10-monochrom-would-you-always-use-a-yellow-filter-for-better-tonality-or-not/?do=findComment&comment=3905512'>More sharing options...
Jeff S Posted February 3, 2020 Share #27 Posted February 3, 2020 Advertisement (gone after registration) There are many kinds/temps of kitchen lighting. It’s like saying sunlight...., morning, noon, twilight, at sea or in mountains,etc? Light source ‘colors’ are as important as subject colors when dealing with filters. Jeff Link to post Share on other sites More sharing options...
Chaemono Posted February 3, 2020 Author Share #28 Posted February 3, 2020 vor 4 Minuten schrieb Jeff S: There are many kinds/temps of kitchen lighting. It’s like saying sunlight...., morning, noon, twilight, at sea or in mountains,etc? Light source ‘colors’ are as important as subject colors when dealing with filters. Jeff I know. I posted about it in #20. 😁 Link to post Share on other sites More sharing options...
Jeff S Posted February 3, 2020 Share #29 Posted February 3, 2020 24 minutes ago, Chaemono said: I know. I posted about it in #20. 😁 Then #26 response sucks even worse. Jeff Link to post Share on other sites More sharing options...
Chaemono Posted February 3, 2020 Author Share #30 Posted February 3, 2020 vor 6 Minuten schrieb Jeff S: Then #26 response sucks even worse. Jeff 😁 I know. It was meant to be humorous. Link to post Share on other sites More sharing options...
Jeff S Posted February 3, 2020 Share #31 Posted February 3, 2020 Kind of like the whole thread then. Jeff 1 Link to post Share on other sites More sharing options...
frame-it Posted February 3, 2020 Share #32 Posted February 3, 2020 Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! https://schneiderkreuznach.com/en/photo-optics/b-w-filters/filtertypes/nd-100-series-1 1 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! https://schneiderkreuznach.com/en/photo-optics/b-w-filters/filtertypes/nd-100-series-1 ' data-webShareUrl='https://www.l-camera-forum.com/topic/305720-m10-monochrom-would-you-always-use-a-yellow-filter-for-better-tonality-or-not/?do=findComment&comment=3905571'>More sharing options...
Chaemono Posted February 3, 2020 Author Share #33 Posted February 3, 2020 vor 23 Minuten schrieb Jeff S: Kind of like the whole thread then. Jeff Not as funny as this tread will be. 😂 Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/305720-m10-monochrom-would-you-always-use-a-yellow-filter-for-better-tonality-or-not/?do=findComment&comment=3905574'>More sharing options...
stickan1 Posted February 5, 2020 Share #34 Posted February 5, 2020 (edited) Interesting thread! I want to rise the question of polfilters on Monochrome cameras. As I understand it they do the same job as with a colour sensor and should therefore be necessary in situations when you have reflections as in seascapes and landscapes, especially with water. For the same scenes you may also want a yellow or orange filter? But I don't think that it is a good ideas to stack filters due to the risks for interference and vignetting. So my question is do you use a polfilter as you first choice in nay situations? Edited February 5, 2020 by stickan1 Link to post Share on other sites More sharing options...
UliWer Posted February 5, 2020 Share #35 Posted February 5, 2020 You can and you actually have to control the effect of a polfilter according to the light and situation you use it for. Therefore it would always be my first preference - though unfortunately you have to think about how to use it and I am not completely sure whether I am always able to do this... 1 Link to post Share on other sites More sharing options...
marcg Posted February 5, 2020 Share #36 Posted February 5, 2020 https://www.google.com/search?q=polarizing+filter+black+and+white+film&rlz=1C1CHBF_en-GBGB822GB822&sxsrf=ACYBGNT-YeyBnDcxBuvcNhea_rU93mBdQQ:1580927153928&tbm=isch&source=iu&ictx=1&fir=iOYKmlcoYSG1dM%3A%2CZMDgNKUUHhw-_M%2C_&vet=1&usg=AI4_-kT9cMTEtP0EDCFBhmXaAIc4nfWzqw&sa=X&ved=2ahUKEwjizbPLhLvnAhXFi1wKHf30CrYQ9QEwAXoECAkQBA#imgrc=iOYKmlcoYSG1dM: 2 Link to post Share on other sites More sharing options...
UliWer Posted February 5, 2020 Share #37 Posted February 5, 2020 Btw: Each time when a topic about the use of photographic filters comes up, I think: where is Lars Bergquist? Lars made hundreds of postings about use of filters here - though unfortunately he is not with us any more. I remember he published an excellent summary of his experience - well written as always, and with some strong opinions... though the link I found does not go anywhere anymore: http://www.acecam.com/magazine/filters-faq.html So I‘d like to ask whether someone happens to have a digital copy of this article by Lars Bergquist about filters, which might be published here? 1 Link to post Share on other sites More sharing options...
SrMi Posted February 5, 2020 Share #38 Posted February 5, 2020 3 minutes ago, UliWer said: Btw: Each time when a topic about the use of photographic filters comes up, I think: where is Lars Bergquist? Lars made hundreds of postings about use of filters here - though unfortunately he is not with us any more. I remember he published an excellent summary of his experience - well written as always, and with some strong opinions... though the link I found does not go anywhere anymore: http://www.acecam.com/magazine/filters-faq.html So I‘d like to ask whether someone happens to have a digital copy of this article by Lars Bergquist about filters, which might be published here? You can always use the wayback machine to find content that has disappeared. One saved copy is here: http://web.archive.org/web/20040825082145/http://www.acecam.com/magazine/filters-faq.html 1 3 Link to post Share on other sites More sharing options...
marcg Posted February 5, 2020 Share #39 Posted February 5, 2020 5 minutes ago, UliWer said: Btw: Each time when a topic about the use of photographic filters comes up, I think: where is Lars Bergquist? Lars made hundreds of postings about use of filters here - though unfortunately he is not with us any more. I remember he published an excellent summary of his experience - well written as always, and with some strong opinions... though the link I found does not go anywhere anymore: http://www.acecam.com/magazine/filters-faq.html So I‘d like to ask whether someone happens to have a digital copy of this article by Lars Bergquist about filters, which might be published here? https://web.archive.org/web/20140629040907/http://www.acecam.com/magazine/filters-faq.html#1. 1 1 Link to post Share on other sites More sharing options...
marcg Posted February 5, 2020 Share #40 Posted February 5, 2020 Damn! Cross-posted Link to post Share on other sites More sharing options...
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