trakakis
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Posts posted by trakakis
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<p>Hi all!<br>
Can anyone tell me how I can select the 25600 ISO for Canon 650D? I think you cannot select it directly, but how?<br>
Also, has anyone any recommending settings for noise removal of high ISO Raw files at Adobe Raw?<br>
Thanks!</p>
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<p>Very nice to have it!</p>
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<p>Thank you all very much for your time and for your help!</p>
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<p>Thanks for your answers!<br /> Howard, you are right, maybe I am confused about them!<br /> Andrew, thanks for your advise! Unfortunately the Adobe Lens Profile Downloader has no profiles for Olympus lenses. Have you any idea where can I find any ready DNG profile for Olympus E-510? I think it's a littile bit difficult for me to create one from my own!<br /> I appreciate your help dear friends!</p>
<p> </p>
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<p>Hi all!<br>
When I open a raw file captured from my Olympus E-510 with Adobe Camera Raw 6.2 and go to Camera Calibration tab, ACR doesn't display any profile for my camera, althouth <a href="http://www.adobe.com/products/photoshop/cameraraw.html">Adobe </a>says it supports my model. The same happens at the Lens Correction tab, it doesn't display any profile for Olympus. If I open a raw file from other Camera (Nikon for example) everything is ok. Does anyone know how I'm going to fix this???<br>
Thanks for your time!</p>
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<p>Thanks for your response Greg!!</p>
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<p>Hi all!<br>
I would like to ask you about something I noticed lately. I have an Olympus E-510 and when I take a photo using sRGB I see at the exif data that in Color Space I see "sRGB", as it should be, BUT when I take a photo using AdobeRGB I see at the exif data that the Color space is shown as "Uncalibrated". Why does this happen? It should be "AdobeRGB", shouldn't it?!?<br>
I would be appreciate any help! Thanks for your time!</p>
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<p>I would like to help you all for your interesting!! All the posts were very helpful and I learned a lot of things!! It's great feeling to know that if someone needs help he will find it at Photo.net!<br>
Thank you!<br>
Best regards,<br>
George</p>
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<p>I took some photos today, with blues inside. I used AdobeRGB at my camera, and then I used AdobeRGB in Photoshop. The blues with this way were ok during editing in photoshop. So I can work with AdobeRGB in all steps, and at the end to convert to sRGB for printing or for web. I think this can work!</p>
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<p>Tim, I did this other one step, and the color doesn't change, looks exactly like the first fill. Does it mean something?<br>
The site you mention is very nice!! The problem is that the solution suggested there (the Uniform Perceptual Lab profile) I think is very difficult for me to do something with!<br>
I guess I have to leave with this!</p>
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<p>Tim,<br /> I did what you said (I hope right!!) and it happened exactly what you said!! After converting to Lab ProPhotoRGB blue purity fill changed color, while first fill stayed the same!!!<br /> Here you can see;<br /> Before converting to Lab<br /> <img src="http://img203.imageshack.us/img203/7413/85468232.jpg" alt="" /></p>
<p>After converting to Lab<br /> <img src="http://img31.imageshack.us/img31/3597/36366983.jpg" alt="" /></p>
<p>So this means that we have a mapping error?!? What exactly is this? Can I fix it some how? Does the monitor or the calibrator not work properly so I could buy another to fix the problem? You are fantastic!!!</p>
<p>Chip, very helpful your post!!! I think I understand now!! Thanks!!!</p>
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<p>Oops!! I did't see your last message!! I'll try immediately!!</p>
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<p>Tim, you are the scientist of color!!!<br>
To be honest, I don't know exactly what means "Assign Profile"; It just changes color space? Isn't it the same with the "Convert to profile"??<br>
Sorry for bothering you, I just try to understand some things and <em>how I can work in Photoshop</em> (what procedure to follow) to have as "true" colors as I can.<br>
If I use sRGB in Photoshop and create a (0,0,255) layer, it looks as I mentioned like (87,1,255). When I Assign Profile to ProPhoto RGB I take the true (0,0,255). This means that I should follow everytime this procedure to work with and then at the end converting to sRGB?</p>
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<p>Well, I found that the (0,0,255) in Photoshop is actually looks exactly like (87,1,255).<br>
A possible explanation can be found <a href="http://www.imaging-resource.com/ACCS/HUEY/HUEY.HTM">here</a>;<br>
"<em>If you do this for a living and print on art stock or use custom inks, investigate the ColorVision solution. In our experience, the Spyder2 Pro has produced the most consistent and accurate screen adjustments of any solution we've tried. Our Spyder created a profile with a slightly larger gamut (more blues) than our huey profile.</em>"<br>
So I think that Huey creates a profile that has limited gamut at blues. I tried in other two monitors (almost new ones) and I saw same results. (0,0,255) is like (87,1,255).<br>
So now I'm wondering if the Spyder would create a profile with larger gamut that would display blue color in Photoshop more accurate and if it worths giving money to buy one...</p>
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<p>Dear Tim,<br>
all your posts are so useful!! I'm going to study them in detail, but I think I have already understand many things.<br>
I examined that if I use ProPhotoRGB in Photoshop and create a blue layer (0,0,255) it looks perfect!<br>
Here is one thought; when I open an sRGB photo, I work with it in Photoshop in ProPhotoRGB. In this color space I found out that if I decrease the Hue of Blues, I take a better blue, not purple or violet. Then I convert to sRGB and save the photo. Is this correct?<br>
(I have spent a lot of your time, so if you don't answer that's ok!! I appreciate your help!!!)</p>
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<p>Dear friends,<br>
thank you all for your interesting responses! You are all very kind!!<br>
Here is what I mean with strange blue color (0,0,255);<br>
<img src="http://img38.imageshack.us/img38/5461/image3qj.jpg" alt="" /></p>
<p>I think you can see now the difference!<br>
I'll give you other one clue [ :-) ] ! I calibrated the monitor I have on my work (it's a CRT) and Photoshop displays blue color ok, exactly like Paintshop. I have no problem there!<br>
So, this means that calibrator is ok, and my monitor can't support blue color after calibrating (true blue color is out of display gamut), am I right?<br>
So I need a new monitor (anyway I am thinking for a long time to buy a new one!), don't I?? Or something else is happening?<br>
Thank you very much, and sorry for my bad English!! :-)<br>
Best regards to all of you,<br>
George</p>
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<p>Dear Chip<br>
Thanks for your response and for your detailed answer. You are very kind!<br>
I think I'm going to study in detail PN series for color management this weekend!<br>
I would like to ask you something more, if you can spend a little more time; is it possible that the problem is generated from a bad profile from Huey? Is it possible that Huey doesn't work properly? How can I examine if it works ok? Maybe trying on a different PC?<br>
Thanks for your help!!<br>
Best regards,<br>
George</p>
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<p>Firstly, I really appreciate your help! Very kind you answered to me!<br>
I open photoshop and create a blue page (0,0,255, sRGB color space). Well, it behaves like violet. Then I save it, I open with a different program (for example Corel Paintshop or Microsoft Picture Manager) and I have a nice, true, blue color! So I think you are right.<br>
But my Color settings at Photoshop are ok, aren't they? I mean I should use sRGB, or AdobeRGB, not monitor's profile, right?<br>
Of course I am going to study PN's series on Color Management!</p>
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<p>Hi!<br>
I would like your help if this is possible.<br>
Until now, I had my monitor uncalibrated. I used to work on sRGB with my camera, and on sRGB on Photoshop CS4 and I still work with this color space.<br>
Before some days, I calibrated my monitor using Pantone Huey Pro. The problem is that after calibration, when I open a photo in Photoshop I see different colors. This happens only in Photoshop and Photoshop Elements. For example in Corel Paintshop I see the correct colors. I also have to notice that when I edit a photo on Photoshop and then save it and open it with a different program the colors are ok. Only during editing I see strange colors. I also printed photos at a proffesional photo store and colors were ok.<br>
Has anyone an idea why I see strange colors during editing? For example, blue color look like violet. I guess in Photoshop color settings I have to use sRGB color space, not monitor's new profile from calibration, right?<br>
I would appreciate your help!<br>
Thank you.<br>
George</p>
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<p>I have the E-510 and I have never hesitated to use 1600 ISO. I find it acceptable. I also used the E-620 for two weeks because I was thinking to upgrade, too. Although the 620 is a little bit better at the noise behaviour, I don't think it worths to move from 510 to 620. Wait for a next model!</p>
Canon 650D - 25600 ISO setting - Best settings for noise removal at Adobe Raw
in Canon EOS Mount
Posted
<p>Dear friends,<br>
Your answers are exactly what I wanted! Thank you, I really appreciate it!<br>
Best regards,<br>
George</p>