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I've few questions and maybe from Crestock can answer them:
1) Which color profile do your clients prefer? Almost everybody know that Adobe RGB is quite better if you want to print your pictures while sRGB has a better look on internet especially if you don't have a browser able to render the picture with the right profile (Safari vs. Explorer).
2) Are Crestock's client able to do postprocessing on their own? If they are it would be quite unuseful and time consuming to publish two different version of the same picture (ex. B&W and colors).
Thanks for your answers.
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Hi,
1. We recommend our contributors to upload their images in sRGB.
It is true that AdobeRGB has a somewhat larger gamut than sRGB, so it is a common rule of thumb that AdobeRGB is 'better' for prepress work. In practice there are very few images and applications where you would achieve a visibly better result by choosing AdobeRGB instead of sRGB.
Overall, CMYK offset printing has a smaller colour range than both AdobeRGB and sRGB, but with a slight edge over sRGB in the vivid green and cyan part of the colour spectrum. Below is a comparison of the three colour spaces:
http://www.crestock.com/uploads/forum/gamut-300.jpg
2. Our customers can certainly postprocess our images themselves, so we do not recommend uploading all images both in colour and grayscale, but sometimes it can be tricky to visualise what an image will look and feel like in monochrome, so it can be useful to offer a monochrome version. Furthermore, the grayscale version is not always just a desaturated copy of the colour file, the photographer will often adjusted and optimised the contrast and brightness of the monochrome version until they are happy with how it looks.
There's some more info in this blog article about creating black and white versions of colour images. Here's just one example of an image that has been carefully adjusted to look its best in monochrome:
http://www.crestock.com/images/350000-359999/350253-xs.jpg
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