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hecyahecya 214 posts Joined Oct 2005 Location: Mexico City | I have read that ProPhoto is a better profile to use than Adobe RGB because it is larger and closer to the color gamut of the digital camera. So I tried on Photoshop and the result is that the image is kind of flat with sRGB, better balanced with Adobe RGB and way too saturated with ProPhoto. I tried on Mac and PC and the result is the same. Have you tried ProPhoto ICC? The article on using ProPhotoRGI is here: http://www.luminous-landscape.com/tutorials/prophoto-rgb.shtml EOS 20D SpeedLite 420EX Tamron 28-75 mm f2.8 XR Di Tamron 70-300 mm F/4-5.6 Di Bogen 3021Pro Tripod LOG IN TO REPLY |
NightcrawlerNightcrawler 685 posts Likes: 1 Joined Jun 2004 Location: Omaha, NE | You have to make sure that you 'convert' to the various profiles and not 'assign'. There is a big difference in result when you use assign. When you convert, you shouldn't notice much difference. If you are shooting JPEG and want to do some editing in Photoshop, go ahead and use Adobe RGB. If you just want to put them on the web right away, just take the pictures in sRGB. For RAW, I convert using ACR and have the destination profile set to ProPhoto. I have read that article you link to and I think it shows that the ProPhoto space, if used properly, can yield better results. Adobe RGB doesn't quite cover the gamut of the 20D, but I know that ProPhoto does. Bitmoji for mac os download. Jason - Gear - Site LOG IN TO REPLY |
hecyahecya THREAD STARTER 214 posts Joined Oct 2005 Location: Mexico City | I had the idea that the profile that is assigned is the input profile and convert is to actually render the image using the input and output profile to have it ready to print. Platformio serial speed. EOS 20D SpeedLite 420EX Tamron 28-75 mm f2.8 XR Di Tamron 70-300 mm F/4-5.6 Di Bogen 3021Pro Tripod LOG IN TO REPLY |
tiagosaystiagosays 44 posts Joined Oct 2005 | Nov 24, 2005 05:10 as a reply to @Nightcrawler's post | #4 jasonhuebert wrote: You have to make sure that you 'convert' to the various profiles and not 'assign'. There is a big difference in result when you use assign. When you convert, you shouldn't notice much difference. If you are shooting JPEG and want to do some editing in Photoshop, go ahead and use Adobe RGB. If you just want to put them on the web right away, just take the pictures in sRGB. For RAW, I convert using ACR and have the destination profile set to ProPhoto. I have read that article you link to and I think it shows that the ProPhoto space, if used properly, can yield better results. Adobe RGB doesn't quite cover the gamut of the 20D, but I know that ProPhoto does. hi, can you tell what kind of RAW converter software do you use? you use only ACR? can you tell what application is ACR? i do not know any by ACR thanks LOG IN TO REPLY |
NightcrawlerNightcrawler 685 posts Likes: 1 Joined Jun 2004 Location: Omaha, NE | Sorry 'bout that. Free download hotspot shield for android mobile دانلود. ACR stands for Adobe Camera RAW. Jason - Gear - Site Best revision apps for mac. LOG IN TO REPLY |
PacAcePacAce 26,898 posts Likes: 39 Joined Feb 2003 Location: Keystone State, USA | Nov 24, 2005 11:57 as a reply to @hecya's post | #6 hecya wrote: I had the idea that the profile that is assigned is the input profile and convert is to actually render the image using the input and output profile to have it ready to print. When you use ACR to convert your raw image, you have the option of selecting one of several color spaces, ProPhoto RGB being on of them, that will be used for your converted image. It is at this point that you select what color space you want to use. Once the color space is assigned to the image, you have to convert your color space from, say, ProPhoto RGB if you want the image to be in another color space such as Adobe RGB or sRGB. The only time you would assign a color space to an image is if the image is not tagged with the the color space information. And when you do assign the color space at this point, you have to make sure that what you tag it with actually matches the color space that the image is actually in. Assigning sRGB to an untagged image that was created using a ProPhoto RGB is not going to give you an accurate rendition of the colors of the image. .Leo LOG IN TO REPLY |
The HardcardThe Hardcard 578 posts Joined Jun 2005 | Another point is that if you plan to use ProPhoto, you should be in 16-bit depth. Using 8-bit will stretch the color values too far apart. I have been looking at this and plan on looking at the benefits of ProPhoto. However, I did notice one thing. In the explanation of ProPhoto at Luminous Landscape, Michael Reichmann, notes that the 20D profile that he got from the Capture One program is much larger than the Adobe RGB profile, the basis of his explanation of why we may be throwing away info by using Adobe. However, I looked at the camera ICC profiles provided by Canon in DPP and was interested to notes that for every camera, including the new 5D, the profiles are smaller than Adobe RGB. I was actually wondering about that. Has anyone else looked at these profiles? LOG IN TO REPLY |
hecyahecya THREAD STARTER 214 posts Joined Oct 2005 Location: Mexico City | I have DPP v1.6 on MacOSX and I could not find any Canon profiles for 20D. Where are thay? EOS 20D SpeedLite 420EX Tamron 28-75 mm f2.8 XR Di Tamron 70-300 mm F/4-5.6 Di Bogen 3021Pro Tripod LOG IN TO REPLY |
hecyahecya THREAD STARTER 214 posts Joined Oct 2005 Location: Mexico City | The 20D profile that you get with PhaseOne software is actually bigger than AdobeRGB (not by much really) and ProPhoto is much bigger than 20D. EOS 20D SpeedLite 420EX Tamron 28-75 mm f2.8 XR Di Tamron 70-300 mm F/4-5.6 Di Bogen 3021Pro Tripod LOG IN TO REPLY |
The HardcardThe Hardcard 578 posts Joined Jun 2005 | Well I felt the point was significant because the DPP profiles come from Canon. All of their camera profiles are smaller than Adobe RGB. Interestingly, the largest profile is for the XT. The profiles are inside the app. You have to select it; right click(control + click) the select 'Show Package Contents.' In the new window, navigate Contents/Resources. You will see the .icc's. Since you have DPP v1.6 the profiles will use camera names. Mac owners using DPP v2.x.x will see the numericals. You can associate the numericals to camera names by looking at the 1.x.x version profiles, as they have the numbers inside them. I no longer have the older version and I don't recall all the associations. I know that the Rebel XT is 6081. I think the 20D is 6061, but don't bet on it. LOG IN TO REPLY |
UncleDougUncleDoug 1,103 posts Joined Sep 2004 Location: North lake Tahoe, CA | Nov 25, 2005 12:01 as a reply to @The Hardcard's post | #11 The Hardcard wrote: Has anyone else looked at these profiles? Checked these out once.think there are a few posts regarding this a while back. Maybe last spring. Basically things did not seem right. DSLR profiles exceeding the gamut of a TANGO drum scanner profile made with a Hutch Color target. 2 + 2 was equaling -13. If anything they should be closer to a hi-quality CCD based scanner profile, whch is in the ball park of AdobeRGB. Checked a few custom DSLR profiles made with Profile Maker Pro and they are closer to AdoberRGB than ProPhoto. The DSLR profiles that seem to get close to the ProPhoto space have been cooked up with allot of 'secret-sauce' which expands their gamut artificially. You can do this to any input profile with the right profile editing software. -Uncle Doug Canon 5D & 7D Nikon D200 - Mac and PC environment VTour LOG IN TO REPLY |
NightcrawlerNightcrawler 685 posts Likes: 1 Joined Jun 2004 Location: Omaha, NE | If you want to see the size of different profiles check here. You can check the size of the 20D gamut against sRGB, Adobe RGB, and ProPhoto RGB. http://www.drycreekphoto.com …er_gamuts/gamutmodel.html Here is a direct link to the comparison of the 20D gamut with Adobe RGB. http://www.drycreekphoto.com …ld+Model&CS=0&CR=120&TC=2 As you can see, the Adobe RGB gamut misses out on some of the reds, yellows, and purples. Here is a link to the 20D gamut compared to the ProPhoto RGB space. http://www.drycreekphoto.com …ld+Model&CS=0&CR=120&TC=1 You can see that the ProPhoto space can hold all of the colors that the 20D can capture. Download citrix for mac os. Jason - Gear - Site LOG IN TO REPLY |
hecyahecya THREAD STARTER 214 posts Joined Oct 2005 Location: Mexico City | Thanks for the info Hardcard. I have compared the EOS20D profiles from the DPP application and the one with PhaseOne and the later is much bigger. Now, which is closer to reality? HOSTED PHOTO please log in to view hosted photos in full size. EOS 20D SpeedLite 420EX Tamron 28-75 mm f2.8 XR Di Tamron 70-300 mm F/4-5.6 Di Bogen 3021Pro Tripod LOG IN TO REPLY |
hecyahecya THREAD STARTER 214 posts Joined Oct 2005 Location: Mexico City | Now that the profiles are inside DPP, how do you use them? The only options are Adobe RGB, sRGB and WideGamut. EOS 20D SpeedLite 420EX Tamron 28-75 mm f2.8 XR Di Tamron 70-300 mm F/4-5.6 Di Bogen 3021Pro Tripod LOG IN TO REPLY |
tzalmantzalman 13,483 posts Likes: 201 Joined Apr 2005 Location: Gesher Haziv, Israel | The camera profiles are used by DPP behind the scenes as the starting point from which the conversions to the working (i.e., editing) color spaces are made. Elie Elie / אלי LOG IN TO REPLY |
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