Guest guy_mancuso Posted November 21, 2006 Share #1 Posted November 21, 2006 Advertisement (gone after registration) I guess there was issue with greens with a software profile and I was asked to try this with a IR filter a B+W to be exact. Now this is the weirdest setup i ever came up with. LOL. Here is the scene , in my kitchen with strong holgen light above and pouring north light coming in the back . Mixed lighting hell The first images are without the IR cut filter shot at ISO 160 on a tripod( don't tell anyone i used a tripod on a M camera ) shot at 5.6 with AWB First shot straight out of the camera No filter and NO WB Second shot I WB off the Color chart and again No 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! 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/9778-green-test/?do=findComment&comment=100122'>More sharing options...
Advertisement Posted November 21, 2006 Posted November 21, 2006 Hi Guest guy_mancuso, Take a look here Green Test . I'm sure you'll find what you were looking for!
Guest guy_mancuso Posted November 21, 2006 Share #2 Posted November 21, 2006 Okay these are with the B+W with filter On camera same setup First one no WB applied Second One WB applied 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/9778-green-test/?do=findComment&comment=100126'>More sharing options...
reven Posted November 21, 2006 Share #3 Posted November 21, 2006 Do you have the same shot with filter ? to see the diffrence ? EDIT: I was to fast ^^ Link to post Share on other sites More sharing options...
sdai Posted November 21, 2006 Share #4 Posted November 21, 2006 Wow ... that's quick, Guy. Thanks a lot! So, with the 486 on you still have to work on WB ... how faithful is the color rendition of the table cloth in your opinion? do you have another camera ... Canon, Nikon or whatever, so we could compare how accurate those colors can be? Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #5 Posted November 21, 2006 That is a dark green polyester soccer shirt . The filter with WB is pretty darn close to reality. We still need a profile for C1 but close Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #6 Posted November 21, 2006 Now remember you will see those bluish highlights in the back because of the mixed lighting , i did this on purpose Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #7 Posted November 21, 2006 Advertisement (gone after registration) Wow ... that's quick, Guy. Thanks a lot! So, with the 486 on you still have to work on WB ... how faithful is the color rendition of the table cloth in your opinion? do you have another camera ... Canon, Nikon or whatever, so we could compare how accurate those colors can be? I tore it down already but they are very close with the filter on and I bet the DMR would have been very similar if not a touch warmer. Your always going to have to WB to be accurate, that is normal with any camera. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #8 Posted November 21, 2006 Now another test real quick CC outside in the Arizona i will bake you like a oven sun. Very bright here This one I WB both with the filter on and off. You will see in the cardboard frome the magenta cast still without the filter Ist one no filter and WB Second One Filter and WB Notice it gets closer outside , less IR light than Hologens inside. 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/9778-green-test/?do=findComment&comment=100156'>More sharing options...
Jamie Roberts Posted November 21, 2006 Share #9 Posted November 21, 2006 Guy-- I'm surprised at how good the camera was un-white-balanced. I'm not sure the DMR could handle it. In the second, unfiltered, WB shot, what profile did you use? (and you know why I'm asking ) BTW--it's NOT all greens, or even all synthetic greens, that have a problem. It's SOME synthectic greens; I personally couldn't find anything in my studio or home to cause a problem at all, and that included towels, children's toys, blankets and tablecloths! But there are some green dyed "flocking" materials out there that register neutral under tungsten and are much better, apparently, with a 486 filter. Thanks Guy, again! Link to post Share on other sites More sharing options...
sdai Posted November 21, 2006 Share #10 Posted November 21, 2006 Now remember you will see those bluish highlights in the back because of the mixed lighting , i did this on purpose That's true, Guy. This reminds me of a YSL polo shirt I have ... they call it Airforce Blue. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #11 Posted November 21, 2006 Guy-- I'm surprised at how good the camera was un-white-balanced. I'm not sure the DMR could handle it. In the second, unfiltered, WB shot, what profile did you use? (and you know why I'm asking ) BTW--it's NOT all greens, or even all synthetic greens, that have a problem. It's SOME synthectic greens; I personally couldn't find anything in my studio or home to cause a problem at all, and that included towels, children's toys, blankets and tablecloths! But there are some green dyed "flocking" materials out there that register neutral under tungsten and are much better, apparently, with a 486 filter. Thanks Guy, again! It is interesting that when i did not WB with the filter on it rendered very nice , when i hit the WB it went to the blue side as i was was a white area. Now I used C1 with the M8 profile. Now the blanket on the right side might be worth looking at but he shirt went crazy without the filter. It's funny we maybe better off not WB with the filter on. That is something that maybe worth looking at Link to post Share on other sites More sharing options...
chetccox Posted November 21, 2006 Share #12 Posted November 21, 2006 Guy - As we talked about earlier, I think the WB issue seems to be directly related to the amount of IR. You seem to be proving that. Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #13 Posted November 21, 2006 Absolutely Chet. Look outside and things are close because of less IR compared to the tungsten light. It sort of makes you want not to use the filter outside but than again you may run into some blacks out there that go magenta. The inside shots to be are a no brainer just put the damn filter on and shoot away , i proved that with some event stuff already no magenta cast anywhere, took the filter off and bam magenta everywhere but outside i am still in the air about the use of the filter , maybe becuase the prifile is off that it is bugging me . I have some time after today to play a little with that. I head says leave the filter on and work on a better profile for outside stuff becuase it is off right now. Again like we keep saying this stuff takes some time to get a handle on it. IA very good friend of mine is trying to do some profiles and he said this camera is really hard to do becuase of the large color gamut Link to post Share on other sites More sharing options...
sdai Posted November 21, 2006 Share #14 Posted November 21, 2006 Guy, I understand that Arizona is always sunny but, just by chance, have you tested for the magenta/green cast and WB in a very cloudy and gloomy day, or simply in a big shade outdoors? ... just to prove that the lousy AWB performance is or isn't related the amount of IR? Link to post Share on other sites More sharing options...
chetccox Posted November 21, 2006 Share #15 Posted November 21, 2006 Thanks for the great tests and info, Guy. Now, if only I could find filters! It makes one wonder if perhaps in the tests Leica did, they were using the filter so the white balance never showed problems! Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #16 Posted November 21, 2006 Simon pretty much the same results everywhere but i will test more of that soon. Shade causes the same issue like when i shot the luggage in the garage i got magenta without than cleaned up with the filter. All I know is the filter works and works good accept that or not is up to the buyer but i can tell already this maybe the final answer, sorry guys. There are not a lot of options here Link to post Share on other sites More sharing options...
Jamie Roberts Posted November 21, 2006 Share #17 Posted November 21, 2006 Guy--can you do me a big favour and give this a quick try with the profiles I made for the M8 instead of the regular M8 profiles? I'd love to see them with / without a filter, since I think they're more balanced overall. You'll have to WB, of course Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 21, 2006 Share #18 Posted November 21, 2006 Sure you want to send them to me. I will run the complete test over on filter and non filter with WB done with your profile instead and see what happens Link to post Share on other sites More sharing options...
sdai Posted November 21, 2006 Share #19 Posted November 21, 2006 Simon pretty much the same results everywhere but i will test more of that soon I really appreciate your effort, Guy ... and I'm ready to accept the filters as a "solution". But let's work out more to help Leica figuring out the potential issues if there're any slipping through their fingers. I've placed my order at a friend's store in Japan, so far none has been shipped to that country - now I'm considering buying from a local dealer here due to the great chances dealing with warranty issues. In any case, I wouldn't expect a delivery soon ... Link to post Share on other sites More sharing options...
Jamie Roberts Posted November 21, 2006 Share #20 Posted November 21, 2006 Sure you want to send them to me. I will run the complete test over on filter and non filter with WB done with your profile instead and see what happens Guy--they're on their way! Link to post Share on other sites More sharing options...
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