wparsonsgisnet Posted November 16, 2006 Share #141 Posted November 16, 2006 Advertisement (gone after registration) The real question is -- who keeps their garage that clean?! Link to post Share on other sites More sharing options...
Advertisement Posted November 16, 2006 Posted November 16, 2006 Hi wparsonsgisnet, Take a look here Some news about the M8 . I'm sure you'll find what you were looking for!
Jamie Roberts Posted November 16, 2006 Share #142 Posted November 16, 2006 Nice shots, now WHERE is my M8?Tom Tom--don't know. My only point was they're nice UNFILTERED shots Link to post Share on other sites More sharing options...
gogopix Posted November 16, 2006 Share #143 Posted November 16, 2006 Now look into the garage , the exposures vary slightly but are you noticing more DR with the filter might just be the EV higher, what was the speed ? sameaperture? someone speculated that the filter would reduce overall light to AE thus get higher exposure garage may just be brighter now however, i think DETAIL can improve since some of the 'fuzzier' reds are filtered as well leaving slightly bluer (longer WL) values alsopretty subtle though regards Victor Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 17, 2006 Share #144 Posted November 17, 2006 Mark, Neither one is really accurate as it is out of the camera (these photos). We had to add a little magenta back into it in C1 to get it close. The tree in the second shot gives the appearance of how the color looks when using a polarizer in this light, while the rest is too cyan across the whole frame. The first shot is closer on the trees, but off on the rest (too magenta). It really seems as if the IR filter MUST be used to stabilize the light (remove the IR) and then you can adjust in C1. You can get very close in C1 with color adjustments or adjusting the custom calibration sliders in LightRoom, once you use the IR filter. It appears as if the 486 filter / sensor cover combo may remove a little too much. (In other words it actually dips into the magenta/red of the visible spectrum.) However, this is now across the entire frame and is correctable. As Guy mentioned, with the filter, DR and sharpness appear to increase. As a side note, when using the IR filter the AWB works MUCH better. It still needs some firmware tweeking, but is by no means as inconsistent as it is without the filter. Ray Thanks Ray . i am still in La la land on daylight. I know the filter is helping as we can see in Rays shirt but I need to get a handle on the color now. It does dip into a little to far as Ray said. Which is okay and we need to profile it. I worked all day with portable flash and ambient and the filter is a godsend compared to not using it. Black table cloths, black show curtains, black suits . the world was going magenta with my 24mm since i am waiting on the filter . the 35mm was nailing it everytime with the filter. It's amazing the materials that we see everyday how much a affect it has Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted November 17, 2006 Share #145 Posted November 17, 2006 might just be the EV higher, what was the speed ? sameaperture? someone speculated that the filter would reduce overall light to AE thus get higher exposure garage may just be brighter now however, i think DETAIL can improve since some of the 'fuzzier' reds are filtered as well leaving slightly bluer (longer WL) values alsopretty subtle though regards Victor same everything victor now change i stoped to F 5.6 just in case of any vignetting and such Link to post Share on other sites More sharing options...
Joseph S. Wisniewski Posted November 24, 2006 Share #146 Posted November 24, 2006 The IR block filter completely eliminated the magentas. Prior to this the magenta cast showed up in all kinds of things. It was not strictly on blacks. Guy took some photos of my car (gray) and myself (blue shirt) that were very magenta without the filter, but on color with the filter. Ray, what was that shirt made out of? I ask because I've seen problems in cotton clothing on blacks, gbrowns, blues, and really deep greens before. The IR block filter really does need a new color profile as it does affect the general color. It seems to remove a little red from everything. I'm not technical enough on light transmission or filters to know if this is true or if the combination of the filter and the sensor coating is starting to remove a little of the visible red spectrum also. The IR contamination shows up in all colors. But on some colors, it's easier to "fix" with a profile than on others. Especially green, yellow, orange, and red. So, you're using a profile where Phase One has "baked in" a correction for IR contamination in those colors. When you remove the contamination with the IR filter, the "correction" isn't needed any more, and you need a new profile that doesn't have it. I reshot some night scenes with cars and neon in them last night which had the "green blobs" previously which did not have the "blobs" when I used the filter, however some minor banding could still be seen. Now it is time to play in C1 & Lightroom to see how these shots actually come out when post processed. Ray Should be fun. Try a Tom Fors action on CS2 and ACR, also, calibrating with a shot of a Macbeth ColorChecker. Link to post Share on other sites More sharing options...
harmsr Posted November 24, 2006 Share #147 Posted November 24, 2006 Advertisement (gone after registration) Hi Joseph, The shirt was one of the "Under Armour" brand type, so it is basically a polyester and elastic. I have found that all kinds of natural or "synthetic" materials will take on the magenta shift, whether they be a cloth, anodizing, or paint. The only thing which has not really turned colors to date is natural stone and plastic. Best, Ray Link to post Share on other sites More sharing options...
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